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Physics

Adolfo Cunningham

a ball is thrown straight upward with a speed of 20 m/s. what is the velocity of the ball at the top of its path?

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Physics

Logan Pham

True or false materials with a high specific heat can absorb a lot of energy and show little change in temperature

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Physics

Marcelo Wolfe

How are sound waves produced?

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Physics

Rory Archer

What has to be different to allow refraction to occur?

a. the medium

b. the light

c. the wave

d. the speed

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Physics

Jessie Walls

As the temperature of an object rises, so does the ...

kinetic energy of the object.

mass of the object.

thermal energy of the object.

potential energy of the object.

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Physics

Kaeden

The primary difference between a rhyolite and a basalt is:

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Physics

Keith Estrada

A major obstacle to develop good human relations skills are

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Physics

Marin Page

What forms of rocks are produced when rocks travel to fewer stages in the cycle?

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Physics

Moses Vincent

An arrow is shot upward on mars from ground level with a velocity of 60 meters per second. Its height (in meters) after t seconds is given by 2 s (t) = 60t - 1.9t^2. (a) what is the maximum height attained by the arrow? (b) With what velocity will the arrow hit mars?

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Physics

Veronica Perkins

What are (a) the lowest frequency, (b) the second lowest frequency, (c) the third lowest frequency of transverse vibrations on a wire that is 10.0m long, has a mass of 100g, and is stretched under tension of 250 N?

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Physics

Helen

Why is a rock salt crystal likely to shatter when struck

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Physics

Chic

Find the speed required to throw a ball straight up and have it return 6 seconds later. neglect air resistance.

how high does the ball go?

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Physics

Mikaela Wade

Do all electromagnetic waves travel at the speed of light, carry energy, and travel through a vacuum?

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Physics

Rudy Weiss

The voltage across the primary winding is 350,000 V, and the voltage across the secondary winding is 17,500 V. If the secondary winding has 600 coils, how many coils are in the primary winding?

30

583

12000

332500

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Physics

Allen Morrow

A 200 watt t. v. is used for 20 hours in a week. If it is used for four weeks then what is cost of electricity if rate is 5rs/kwh

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