Physics High School

## Answers

**Answer 1**

**Answer:**

**Here's the kinetic energy of the ball before it hits after 25m though.**

**GravitationalPotentialEnergy=KineticEnergy**

**GPE=m×g×h=1000kg×9.8m/s2×25m=245,000kg⋅m2/s2**

**So**

**Ke=245,000**

** Joules**

**To prove it..**

**v=2gh−−−√=2×9.8×25−−−−−−−−−−√=22.1359m/s**

**Ke=12mv2=12×1000×22.13592=**

** 245,000J**

**Explanation:**

**First, a ball cannot be dropped from 5m and then bounce to 25m without some sort of external energy source.**

**Second, I'm not sure if you're asking for the kinetic energy before it hits the ground the first time, or before it hits the ground after 25m.**

**Third, if you're asking for the first bounce, I don't believe it can be calculated. We would need to know more about the collision like the elasticity of the ball.**

## Related Questions

when an electron goes into an orbit in the bohr model

### Answers

**Hydrogen **absorbs energy when heated or when another form of energy is provided to it, which causes the electron to become excited that "jumps" to an orbit further from the nucleus.

Why is hydrogen used?

**Methane**, widely known as natural gas, has a healthy substitute in hydrogen. According to estimates, it makes about 75% of the universe's mass and is the most prevalent chemical element. **Huge quantities** of hydrogen atoms are present on earth in water, plants, animals, and, of course, people.

The location of hydrogen.

The sun and the majority of stars include it, while **Jupiter** is primarily made of it. The most prevalent form of hydrogen on Earth is water. Or less 1 part a million by volume, it only exists as a gas in trace concentrations in the **atmosphere**.

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what is a microburst?

### Answers

A **microburst** is a localized column of sinking air (downdraft) within a **thunderstorm**.

What is a microburst?

A **microburst** is a strong downdraft, of less than 2.5 miles in diameter, that can cause damaging winds and powerful wind shear.

**Microbursts** are capable of inducing extensive damage at the surface, and in some instances, can be life-threatening.

A **microburst** starts with the development of a **thunderstorm** and the water droplets/hailstones being suspended within the updraft.

A strong indication of a **microburst** is a thunderstorms in vicinity with visible areas of intense downdrafts indicated by rain or virga.

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around how many banks failed during the great depression?

### Answers

In total, 9,000** banks failed**, wiping out $7 billion in assets from depositors. Additionally, there was no deposit insurance throughout the 1930s; this New Deal reform made it possible.

In the midst of the Great Depression, which banks failed?

The Bank in **New York **went under in December of that year. The bank at the time had deposits totaling more than $200 million, making it the biggest single bank failure within** American history**.

Between 1929 and 1933, how many banks failed?

The amount of products and services produced by the **United States **decreased by one-third from 1929 and 1933, the unemployment rate increased to 25% of the working **population**, the stock market lost 80% of its value, and over 7,000 banks failed.

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What does impulse mean in physics?

### Answers

**Answer: impulse is a certain amount of force you apply for a certain amount of time to cause a change in momentum**

**Explanation:**

In physics, **the impulse** is defined as the change in the momentum of an object. Momentum is a measure of an object's motion and is equal to the product of its mass and velocity.

How can you calculate impulse?

The formula for impulse is: Impulse = Force x time

Impulse has units of Newton-seconds (N-s) in the SI system. When an object experiences an impulse, its velocity changes, which can result in a change in its speed, direction, or both.

Why is the study of Impulse important?

Impulse is important in the study of **collisions**, where it can be used to determine the amount of force required to change the velocity of an object.

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The figure shows a box on a horizontal, frictionless

floor before and after an impulse was applied to it.

V₁= 2 m/s

Before impulse

2 kg ->

B.

A. 3 kg • m/s

c.

D.

What was the magnitude of the impulse?

6 kg • m/s

2 kg

10 kg • m/s

●

18 kg • m/s

After impulse

v₁ = 5 m/s

### Answers

If a force has a constant **magnitude**, we can calculate the size of the impulse by dividing the force's strength by the length of time it is applied.

What is the formula for magnitude of impulse?p is equal to F net t. F net t F net. The impulse-momentum theorem refers to the relationship between t and this equation. The equation shows that the **impulse** is equal to the average net external force times the length of time that force is in effect. The change in momentum is equivalent.The change in momentum of the object is equal to the impulse it experiences. F • t = m • v is an equation. When two objects collide, they both experience an impulse, which both causes and is equal to the change in momentum.Since impulse is a vector, a negative impulse indicates that the net **force** is acting in the opposite direction. A positive impulse indicates that the net force is moving in the same direction.

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the world record for the hundred meter dash is 9.58 s. what is the corresponding average speed in units of m/s, km/h, ft/s, and mi/h?

### Answers

In 9.58 seconds, we complete 100 meters. Thus, we can calculate the **average speed **in m/s, km/h, ft/s, then mi/h by dividing those two to get 10.4 m/s.

The definition of average speed

The entire **distance** covered by the item in a specific amount of time is its average speed. A **scalar quantity**, average speed, exists.

Where can I find average speed?

It is **determined** by dividing the overall distance traveled by the overall time traveled. Consider the previous **automobile** as an example. The average speed of the car if it covers 70 miles in two hours is 70 / 2 = 35 mile per hour.

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A spring with a spring constant of 4. 0 newtons per meter is compressed by a force of 1. 2 newtons. What is the total elastic potential energy stored in this compressed spring?.

### Answers

So the total elastic potential energy stored in this **compressed spring** is **0.54 Joules.**

The **elastic potential energy** stored in the spring is given by the equation:

U = 1/2 * k * x^2

Where U is the elastic potential energy, k is the spring constant, and x is the amount of compression or extension of the spring.

In this case, the spring constant is 4.0 N/m and the spring is compressed by 1.2 N. So the amount of compression x = 1.2 N / 4.0 N/m = 0.3 m.

Therefore, the total elastic potential energy stored in this compressed spring is:

U = 1/2 * 4.0 N/m * (0.3 m)^2 = 0.54 J.

Therefore, the answer is** 0.54 J.**

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The total elastic **potential energy** stored in this compressed sprinf is 0.36 J.

To find the displacement x, we use the force equation F = kx, where k is the** spring constant** and x is the **displacement**,

we can find x = F/k = 1.2/4 = 0.3m

so the potential energy is

= (1/2) * k * x^2

= (1/2) * 4.0 N/m * (0.3m)^2

= 0.340.3/2 = 0.36 J

Hence the total elastic **potential energ**y stored in this compressed spring is 0.36 J.

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Why can't iron be fused to release energy?

### Answers

**Iron** cannot be fused to release **energy **because of its position in the periodic table. Iron is located towards the center of the periodic table and has a high atomic number, which means that it has a high number of protons and electrons.

The nuclei of two lighter elements must combine to generate a heavier **element** during the process of fusion, which releases energy. The nuclei must be brought together with enough **energy** to overcome the strong electrostatic attraction between the positively charged **nuclei**, however, in order for fusion to occur.

Even at the extreme **temperatures** and **pressures** encountered in stars, the repelling force between the positively charged nuclei in **iron** is so strong that it cannot be overcome. This rules out fusion and the release of energy by the fusion of iron. Instead, stars produce energy through the nuclear fusion of heavy **elements** like iron and uranium with lighter ones like **hydrogen** and helium.

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What is 350 °F in °C ?

### Answers

181 degrees Celsius is the answer

As a **result**, 350°F is equal to 176.67°**Celsius**.

What is temperature?

**Temperature **is defined as the degree to which something is hot or cold. Temperature is a measure of a system's average kinetic energy. As particles in a substance travel faster, their kinetic energy increases, raising the temperature of the system. The flow of energy between two bodies of differing temperatures is referred to as **heat**. Temperature is a quantity that represents a body's thermal condition (i.e., the degree of hotness or **coldness **of the body). The direction of heat transmission is specified when two bodies of differing temperatures come into contact.

Here,

To convert 350°F to °C, you can use the formula:

°C = (°F - 32) * 5/9

So,

°C = (350 - 32) * 5/9 = 176.67°C

Therefore, 350°**Fahrenheit **is **equal **to 176.67°Celsius.

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how many miligrams in grams

### Answers

To convert **grams** to **milligrams**, simply** multiply** the number of grams by 1000.

There are 1000 milligrams (mg) in one gram (g). This is because the **metric system **is based on multiples of 10, and a gram is the base unit of mass in the metric system.

Here's the conversion formula:

1 g = 1000 mg

For example, if you have 5 grams, you can convert that to milligrams by multiplying by 1000:

5 g * 1000 mg/g = 5000 mg

It's important to be precise with units when working with **measurements **in scientific and medical contexts, as even small variations in the amount of a substance can have significant consequences. That's why conversions like this are useful - to make sure that you are using the correct units in a given context.

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Write units of measurement

### Answers

The units of** Measurement** are used for the process of comparison. Previously, three separate unit systems were utilized in various nations. These systems were CGS, FPS, and MKS. Today, the **SI system** of units is used globally.

Let us define what measurement is.

**Measurement** is essentially a process of comparison. Find out how many times a standard amount of a **physical quantity** is present in the quantity being measured in order to measure a physical quantity. The resultant number is referred to as the **magnitude**, and the standard used is referred to as the physical quantity's unit.

A physical quantity's unit is a randomly selected standard that is commonly recognized by society and against which other quantities of a like kind may be measured.

Units of measurement are listed below:

Basic **units** of Measurement:

1. Length - meter (m)

2. Time - second (s)

3. Amount of substance - mole (mole)

4. Electric current - ampere (A)

5. Temperature - kelvin (K)

6. Luminous intensity - candela (cd)

7. Mass - kilogram (kg)

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What is the magnitude of the net electric field at the center of the square due to the four charges in terms of q and a ?.

### Answers

The net **electric field **generated by the four **charges** at the square's center is zero in terms of q and a.

The net** electric field** at the center of the square due to the four charges is given by the vector sum of the electric fields due to each charge. The electric field due to each charge at the center of the square is given by kq/a^2, where k is **Coulomb's constant**, q is the charge of each point charge, and a is the side length of the square. Since the charges are located at the four corners of the square and they are equal, the net electric field at the center of the square is zero. The direction of the electric field is defined as the direction in which a positive test charge would experience a force, and the** magnitude **of the electric field is proportional to the force experienced by a test charge. Electric fields are created by charges, and they exert** forces **on other charges within the field. The strength of the electric field is determined by the amount of charge creating the field, and the distance from the charge.

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If the diagonals of a parallelogram are congruent and perpendicular, what special parallelogram is this? A. square B. rhombus C. rectangle D. kite

### Answers

D. Kite is special parallelogram which are congruent and** perpendicular**.

.If a parallelogram's diagonals are congruent and perpendicular, what is it?

A parallelogram** **is a rectangle when and only when its diagonals are congruent. A quadrilateral is a parallelogram if it is a rhombus. A parallelogram's diagonals are perpendicular if it is a rhombus. Each diagonal cuts between two opposing angles if a parallelogram is a rhombus.

Kite - a parallelogram or not? Why?

A **quadrilateral **termed a kite has two pairs of sides that are each the same length and are next to each other. Properties: Where the two asymmetrical sides meet, the two angles are equal. It can be depicted as two congruent triangles sharing a base.

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26c is what in fahrenheit?

### Answers

**Answer: 26 °Celsius = 78.8 °Fahrenheit**

The temperature 26°C is equal to 78.8°F. **Temperature **is the measure of average kinetic energy of the particles in a system.

**What is temperature?**

**Temperature **is a measure of the amount of heat energy an object has. It is **measured **in degrees on the Celsius, Fahrenheit, and Kelvin scales. In physics. As the particles in a system move faster, the temperature of the system rises. Conversely, when the particles move slower, the **temperature **of the system drops. **Temperature **affects the rate of chemical reactions, as well as the physical properties of a material. It is a state variable, meaning that it can be changed and **measured**. **Temperature **is an important factor in many areas of physics, such as thermodynamics, statistical mechanics, and quantum mechanics.

Therefore, The **temperature **26°C is equal to 78.8°F. 26°C × 9/5 + 32 = 78.8°F

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What is the 3rd law of thermodynamics in simple terms?

### Answers

**Answer:**

**Explanation:**

As the temperature of a system gets colder and colder, approaching absolute zero (the coldest temperature possible), its entropy becomes constant, meaning the change in entropy (ΔS) is zero. Entropy is a measure of the randomness, or disorder, or a system.

Third law of thermodynamics states that : entropy of a system approaches constant value as** temperature** approaches absolute zero. The entropy of a system at absolute zero is zero, and in all cases it is determined only by the number of different ground states it has.

What is the 3rd law of thermodynamics?

Third law of **thermodynamics** states that : the entropy of perfect crystal at temperature of zero Kelvin (absolute zero) is equal to zero.

Real-life example of the third law of thermodynamics is Steam/vapors of water are the gaseous forms of water at high temperatures as molecules within steam are randomly moving, hence it will have high **entropy.**

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What is 200 °F in °C ?

### Answers

**Answer:**

200 °F in °C is 93.3333°C

200 °F is equal to 93.33 °C. To convert a **temperature** from Fahrenheit (°F) to Celsius (°C), use the formula as : °C = (°F - 32) * 5/9

How do you convert from °F to °C?

°C = [(°F-32)5]/9 is the formula for converting degrees Fahrenheit to degrees Celsius and shows how many degrees Fahrenheit are converted to one degree **Celsius.**

To convert temperatures between** Fahrenheit** (°F) and Celsius (°C), use this formula below: °C = (°F - 32) * 5/9

Utilizing 200 °F:

Now, °C = (200 - 32) * 5/9 °C = 168 * 5/9

So, °C = 93.33 °C

As a result, 200 °F equals approximately 93.33 °C.

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What does Newton's first law example?

### Answers

**Newton's first law**, also known as the law of inertia, states that an object at rest will remain at rest, and an object in motion will remain in motion with a constant velocity, unless acted upon by a net **external force**.

An example of **Newton's first law** in action is a hockey puck sliding on ice. The puck is at rest on the ice, and a player hits it with a stick, causing it to move. According to **Newton's first law**, the puck will continue to move in a straight line with a constant velocity, unless acted upon by a net external force. This means that the puck will continue to move until it encounters friction from the ice, or until another player strikes it again with a stick, applying a net external force that changes its **velocity**.

Another example could be a book lying on a table. The book is at rest, and if no force is applied on it, it will remain at rest. If someone pushes the book, it will start to move and will continue to move unless an external force acts on it, such as friction from the table or air resistance.

It is important to note that in both examples, an external force is needed to change the velocity of an object. In the case of the hockey puck, the force of the stick striking it causes it to change its velocity, while in the case of the book, friction from the table and air resistance act as external forces that decrease its **velocity**, eventually bringing it to a stop.

**Newton's first law** is a fundamental concept in physics and helps to understand how objects move and why they move the way they do. It also lays the foundation for the other three **laws of motion**.

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how many mph to kph?

### Answers

**1 mph **is equal to** 1.6 kph.**

**Miles per hour** (mph) and kilometers per hour (kph) are units of measurement for speed. Miles per hour is widely used in the United States and some other countries, while **kilometers per hour **is used in most other countries around the world.

The conversion from** mph to kph **is straightforward, as one mile is approximately equal to 1.6 kilometers. To convert from mph to kph, you simply multiply the speed in **mph by 1.6.**

For example, if you are driving at 60 mph, this is equivalent to 96 kph (60 mph * 1.6 = 96 kph).

It's important to know the conversion between these units of measurement, as speed limits and road signs are often different in different countries. When traveling between countries, it's also important to be familiar with the local units of measurement to ensure that you are driving at a safe and appropriate speed.

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can you remove the adsorbed water by oven drying at 105 degrees c? explain.

### Answers

Adsorbed water cannot be removed by oven drying at 105-110˚ C and may therefore be considered to be part of the **solid grain**. Heating at 105-110˚ C will change clay soil structure.

According to studies on the** dehydration **of **montmorillonites**, the water content of **bentonites** may be underestimated using the conventional **oven-drying** approach (drying at 110 5°C). In a calcium-rich bentonite that has been conventionally oven-dried, this study measures, identifies, explains, and eliminates the residual water. The actual water content was assessed using a **thermogravimetric-differential scanning calorimetry** (TG-DSC) test.

In this test, the impact of drying temperature and duration, including oven-drying and vacuum-drying techniques, on the volume of remaining water in the bentonite, was investigated. Specific surface area (SSA), determined from the nitrogen adsorption isotherm and the dehydration reaction represented by TG-DSC curves of samples with a residual water content of 0–13.38 percent, were obtained to detect and explain the residual water. The experimental findings show that the typical oven-drying procedure significantly underestimates (by 2.1-3.1%) the water content of calcium-rich bentonites. Both interlayer water and surface-adsorbed water are included in the residual water, which ranges from 2.1-3.1%.

The 2.1-3.1% of residual water is made up of the water that coats the Ca2+ cations in the interlayer and on the surface of the montmorillonite particles. It is impractical to separate the interlayer water from the adsorbed water only based on the dehydration reaction represented by TG-DSC curves. The adsorbed and interlayer waters in the bentonite can be extracted using a drying profile of 12 hours at 200°C in an oven and 1 hour at 150–200°C under vacuum.

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Convert 168 cm to inches

### Answers

**Centimeters **(cm) and **inches** (in) are two common units of measurement for length. To convert centimeters to inches, you can use the following formula:

**1 inch = 2.54 centimeters**

To convert 168 centimeters to inches, you simply divide 168 by 2.54:

168 cm / 2.54 cm/in = 66.14 in

Therefore, 168 centimeters is equivalent to approximately** 66.14 inches.**

**Converting** between centimeters and **inches** is important in many areas of life, including clothing and apparel, home décor, and building and construction. Knowing how to convert centimeters to inches can help you understand measurements in different countries and contexts, and can also be useful in comparing sizes or determining if an item will fit.

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What is 26 Â°C in Â°F?

### Answers

26**°C** is equivalent to 78.8°F on the** Fahrenheit **temperature scale.

A **temperature scale** is a way to measure the degree of hotness or coldness of an object. There are several temperature scales in use, including Celsius, Fahrenheit, and Kelvin. The difference between these temperature scales lies in the units used and the starting points for defining their scales.

The **Celsius** temperature scale is based on the freezing and boiling points of water and it is used widely around the world. On the Celsius scale, water freezes at 0°C and boils at 100°C.

The **Fahrenheit **temperature scale is used mainly in the United States and it's based on a different starting point. On the Fahrenheit scale, water freezes at 32°F and boils at 212°F.

To convert a temperature from Celsius to Fahrenheit, you can use the following formula:

°F = (°C * 1.8) + 32

So, when you want to convert 26°C to Fahrenheit, you can use the formula as follows:

°F = (26°C * 1.8) + 32 = 78.8°F

In conclusion, 26°C is equivalent to 78.8°F on the **Fahrenheit** temperature scale.

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The electric field strength of a parallel-plate capacitor depends on Check all that apply. othe charge othe surface area of the electrodes othe shape of the electrodes othe spacing between the electrodes The electric field due to an infinite plane of charge is ____ to the plane and that the field strength ______ distance from the plane. a.perpendicular, increases with b.perpendicular, decreases with c.perpendicular, doesn't depend on d.tangent, increases with e.tangent, decreases with f.tangent, doesn't depend on

### Answers

The **electric field **due to an infinite plane of charge is perpendicular to the plane and that the field strength increases with **distance** from the plane. Thus, option A is correct.

**What is electric field?**

An** electric field **is an invisible force field that surrounds a charged object and exerts a force on other **charged **objects in its vicinity. The magnitude of the force depends on the amount of charge on the object and the distance between the two objects. An** electric field **is created when a **charged **object is placed in an otherwise empty space, and it can be used to calculate the magnitude and direction of the force that the charged object exerts on other objects. **Electric fields** are represented by electric field lines, which show the direction and strength of the field.** Electric fields **can be used to explain a variety of phenomena, such as the attraction and repulsion of **charged **objects, the behavior of electric currents, and the properties of capacitors.

**Electric fields **also play an important role in the behavior of light, and are integral to the theory of electromagnetic radiation, check the attachment given below for better understanding.

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10. you are to administer lactated ringer’s solution at 80 ml/hr. the drop factor is 15 gtt/ml. at what rate will you hand regulate this iv to run?

### Answers

You may compute the pace at which you will hand regulate the **IV** to run as follows: Step 1: Convert the flow rate from **milliliters** per hour to grams per minute. 80 ml/hr * (1 hr/60 min) = 1.33 ml/min Step 2.

Divide the flow rate in ml/min by the drop factor to get the number of droplets per minute. 1.33 ml/min x 15 gtt/ml = 0.089 gtt/min, or 8.9 drops/min As a result, you will manually control the **IV** to run at a rate of 8.9 drips per minute. to administer lactated ringer’s **solution** at 80 ml/hr. the drop factor is 15 gtt/ml. may **compute** the pace at which you will hand regulate the IV to run as follows: Step 1: Convert the flow rate from milliliters per hour to grams per minute. 80 ml/hr * (1 hr/60 min) = 1.33 ml/min you will manually control the IV to run at a **rate** of 8.9 drips per minute.

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What is the longest lasting solar panel?

### Answers

The l**ongestlasting solar panel **is often composed of high-quality components and is built to resist harsh weather conditions like **monocrystalline silicon.**

**Solar panels** are devices that use sunlight to generate power. Several factors influence the **longevity** of a solar panel, including the materials used, manufacturing quality, and ambient conditions.

In average, solar panels are predicted to last 25 to 30 years. This means that the panels should continue to produce power at 80% or higher of their original capacity throughout the duration of the warranty. **Monocrystalline silicon**, a high-quality and **long-lasting material**, is used to make the most durable solar panels. To further extend their longevity, these panels are also coated with anti-reflective coatings and weather-resistant materials.

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viral particles contain both nucleic acid and protein and can replicate inside of a host cell. technically, this constitutes a self-replicating molecular assemblage which is also one way to define life. therefore, one can conclude that

### Answers

Because of their inability to respond to their **force **surroundings and their simple repeating process of production, viruses are not Living organisms**. **

What in science is a force?

The word "force" has a **specific **meaning in science.At this level, calling a force a push or even a pull is entirely appropriate.A force isn't something an object "has in it" or that it "**contains**."One thing experiences a force from another.There are both living things and non-living objects in the concept of a force.

What is eighth grade force?

A push or pull that is **applied **to an item is known as force.It implies that we exert force when we pull or **pull **a body.

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How do you convert mcg to mg?

### Answers

We can convert **mcg** to mg by using the **unitary method.**

To convert micrograms (**mcg**) to milligrams (**mg**), follow these steps:

Divide the number of micrograms by 1000: To convert from micrograms to milligrams, you need to divide the number of micrograms by 1000. This is because 1 milligram is equal to 1000 micrograms.

Multiply by 0.001: You can also multiply the number of micrograms by 0.001 to convert to milligrams.

Round the result to the desired number of **decimal places**: If desired, you can round the result to a specific number of decimal places, depending on the level of precision you need for your calculation.

For example, if you have 100 mcg, the conversion to milligrams would be:

100 mcg / 1000 = 0.1 mg

100 mcg * 0.001 = 0.1 mg

So, 100 micrograms is equivalent to 0.1 milligrams.

It's important to note that conversions between different units of measurement should be performed carefully to ensure that the correct units are used and that the calculations are done correctly. It's also important to use the correct number of **significant figures** when rounding results.

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calculate the speed of a satellite moving in a stable circular orbit about the earth at a height of 4820 km

### Answers

To calculate the **speed** of a **satellite** moving in a stable circular orbit about the **Earth** at a height of 4820 km, we can use the equation for the orbital **velocity **of a satellite:

v = √(GM/r)

where v is the velocity of the satellite, G is the **gravitational** constant, M is the mass of the Earth, and r is the distance from the **center** of the Earth to the satellite.

Given that the height of the satellite is 4820 km, we can convert this to meters by **multiplying** by 1000. So, r = 4820*1000 meters. The mass of the Earth is approximately 5.972 x 10^24 kg.

So, v = √(6.67 x 10^-11 N*(m^2)/(kg^2) * 5.972 x 10^24 kg / (4820*1000 m)) = 7726.36 m/s

The speed of the satellite is 7726.36 m/s.

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what are the 10 countries with the largest population

### Answers

**Explanation:**

China India United States Pakistan Nigeria Brazil mexico Russian indonesia

What speed would a fly with a mass of 0. 55 g need in order to have the same kinetic energy as the automobile in item 19?.

### Answers

The fly would need to travel at a **speed** of 73.5 m/s in order to have the same **kinetic energy **as the automobile in item 19.

The kinetic energy of the **automobile** can be determined from the equation K=1/2mv^2. Using the given mass of the automobile, m=1000kg and velocity of 28 m/s, the kinetic energy of the automobile is calculated to be K=1/2(1000)(28)^2=392,000 Joules.

To determine the speed the **fly** would need to travel at to have the same kinetic energy, the equation K=1/2mv^2 can be rearranged to v=sqrt(2K/m).

Using the given **mass** of the fly, m=0.55g, and the kinetic energy of the automobile (392,000 Joules), the speed of the fly is calculated to be v=sqrt(2*392000/0.55)=73.5 m/s.

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describe how vehicle size affects visibility. explain how you would manage risk when driving a sport utility vehicle and a small compact car.

### Answers

Vehicle size affects visibility by creating **blind spots** and a higher ride height, and managing risk while driving a larger or smaller vehicle requires being aware of these visibility limitations and taking extra precautions.

Vehicle size affects **visibility** in a way that larger vehicles having larger blind spots and a higher ride height, making it more difficult to **see** smaller vehicles and pedestrians. To manage **risk** when driving a sport utility vehicle and a small compact car, it is important to be aware of the blind spots and to use extra caution when changing lanes or making turns.

Additionally, it may be necessary to **adjust** mirrors and seating position to improve visibility. Drivers of larger vehicles should also be aware of the increased stopping **distance** required for their vehicle. Furthermore, the driver of smaller vehicles should be **aware** of their lower profile, which can make them more difficult for larger vehicles to see and should be extra cautious when merging or passing larger vehicles on the road.

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