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Physics

A 2.4 kg ball is thrown straight up with a speed of 35 m/s. what is its initial kinetic energy? Find the maximum height the ball will attain

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Physics

What happens to potential energy that is not completely converted to kinetic

energy?

O A. It is stored as potential energy.

O B. It is converted to momentum.

C. It is converted to another form.

D. It is converted to mechanical energy.

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Physics

The path of an electron, traveling at 3.7 * 10^4 meters/second, is making a right angle to a magnetic field. A single electron experiences a force of 2.2 * 10^-15 newtons while in the field. What is the strength of the magnetic field? The vaule of q = - 1.6 * 10^-19

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Julio Mcpherson

Physics

Where is the error in this sentence? A great place to visit on a sunny afternoon is Golden Gate park in San Francisco.

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Physics

Which best explains how an object at rest deep in space and far from any massive body behaves compared to an object in free fall in Earth's gravitational field?

They behave differently because, according to the principle of equivalence, the laws of physics depend on frames of reference.

They behave differently because, according to gravitational redshift, the laws of physics depend on frames of reference.

They behave the same because, according to the principle of equivalence, the laws of physics work the same in all frames of reference.

They behave the same because, according to gravitational redshift, the laws of physics work the same in all frames of reference.

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Physics

Describe the rise and fall of a basketball using the concepts of kinetic energy and potential energy

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Physics

What is not a factor that affects the viscosity of magma?

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Physics

While driving his 600-kg ultra-compact electric car, a distracted driver starts crossing a drawbridge. Not realizing that the drawbridge is about to open, he ends up in the river below with his car. Fortunately the car stayed afloat for a while and he is able to escape before it starts sinking. (a) If the volume of the interior is 2.0 m3, what fraction of the car is immersed while it floats? (b) Eventually, water starts to leak in and gradually fills the car. What is the mass of the water that entered the car when the car starts to sinks? Density of water is 1000 kg/m3.

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Physics

A police officer's radar gun emits radio waves at a frequency of 10.7 GHz10.7 GHz. What is the difference in the frequencies reflected back to the radar gun by a car traveling at the 75 mph75 mph speed limit and a car travelling 9 mph9 mph faster? Assume that the cars are both headed directly away from the stationary officer.

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Physics

Function of a battery

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Physics

When an electric current runs through a wire, a magnetic field is induced ...

O

Around the wire

O

Parallel to the wire

O

Under the wire

O

Through the wire

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Physics

A wheel of diameter 8.0 cm has a cord of length 6.0 m wound around its periphery. Starting from rest, the wheel is given a constant angular acceleration of 3.0 rad/s2. How long will it take the cord to unwind?

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Physics

An extensive continuous mass of ice covering a continental scale is known as

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Physics

Dan deposits $400 into an account that pays simple interest at a rate of 4% per year. How much interest will he be paid in the first 3 years?

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Physics

Suchita sees this symbol shown in a circuit diagram. What is the purpose of the component represented by the symbol?

to measure current

to measure voltage

to provide electrical energy

to use electrical energy

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