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Physics

Beyonce

You are standing against the wall near a corner of a large building. A friend is standing against the wall that is around the corner from you. You can't see your friend. How is it that you can hear her when she talks to you?

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Physics

Nancy Frederick

What is general relativity in easy terms?

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Physics

Christopher Cooper

Temperature and volume are directly or inversely

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Physics

Rudy Sullivan

My Notes A basketball rolls across a classroom floor without slipping, with its center of mass moving at a certain speed. A block of ice of the same mass is set sliding across the floor with the same speed along a parallel line.

How do their energies compare?

A. The ice has more kineticenergy.

B. They have equal kineticenergies.

C. The basketball has more kineticenergy.

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Physics

Darion

How does sound travel through waves?

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Physics

Pugsley

Solve for real t: - 25=20t-5t^2

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Physics

Hope

Contrast balanced and unbalanced forces.

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Physics

Chandler Bridges

A wave will travel only as long as it has energy

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Physics

Emmett Norris

a box sliding on a frictionless surface when it suddenly begins to rain heavily. if the downpour of rainfall falls vertically into the box, gradually filling it, what would happen to the speed of the box

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Physics

Stephanie Hughes

Which would fall with a greater acceleration in a vacuum-a leaf or a stone?

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Physics

Declan Williams

A force acts on a 5kg object at rest. How fast will the object accelerate on a frictionless surface?

A.) 4 m/s^2

B.) 15 m/s^2

C.) 25 m/s^2

D.) 100 m/s^2

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Physics

Guest

Four wrestlers step on a scale for a tournament. Wrestler A weighs in at 170 pounds; wrestler B weighs in at 168 pounds; wrestler C weighs in at 171 pounds; and wrestler D weighs in at 169 pounds. Which of these wrestlers experiences the greatest force due to gravity

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Physics

Gerald

What is a change in velocity per time

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Physics

Guest

Recall specific heat of water is 4186 j/kg/C. Find the specific heat of sample.

Water. Sample

Mass 109 192

Internal temperature. 21. 67

Final temperature. 30.1. 30.1

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Physics

Jags

During which period did the first large herbivores and carnivores appear?

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