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Physics

Duncan Castillo

Compare the momentum of a 6,300-kg elephant walking 0.11 m/s and a 50-kg dolphin swimming 10.4 m/s. your answer

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Physics

Arnav Collins

What happens when the thermal energy of a substance increases?

A. The motion of the particles in the substance increases, and the temperature of the substance decreases.

B. The motion of the particles in the substance decreases, and the temperature of the substance increases.

C. Both the motion of the particles in the substance and the temperature of the substance decrease.

D. Both the motion of the particles in the substance and the temperature of the substance increase

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Physics

Devin

The electrons between atoms in metallic bonds

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Physics

Noemi Ruiz

Which example best represents translational kinetic energy?

a plucked string on a guitar

the moving blades of a ceiling fan

a spinning top

a tuning fork struck on a rubber block

an apple falling from a tree

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Physics

Andrea

Light travels 186 000 miles per second. how many miles dose light travel in one year

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Physics

Aiyana Henderson

How long can you play tennis on the 949kJ of energy in a candy bar? Assume that the average power consumption for a person playing tennis is 440W.

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Physics

Felix

Consider a situation where you are playing air hockey with a friend. The table shoots small streams of air upward to keep the puck afloat and to minimize friction. When you barely tap the puck forward, it

A. slows and stops.

B. moves with a constant speed until hitting the other end.

C. moves backward with an equal and opposite velocity.

D. continues to accelerate.

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Physics

Bullet

At room temperature of 30 degree celsius, a glass of water takes one minute to cool from 80 degree celsius to 60 degree Celsius. How long will it take to further cool from 60 degree celsius to 50 degree celsius?

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Physics

Gardner

You are traveling in a spaceship at a speed of 0.70c away from Earth. You send a laser beam toward the Earth traveling at velocity c relative to you.

What do observers on the Earth measure for the speed of the laser beam?

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Physics

Julissa Jensen

Hydrogen is a colorless, tasteless, and odorless gas.

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Physics

Maci Dalton

How far does a wave travel in three cycles

?

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Physics

Conrad Buchanan

Why is a noble gas different from other elements

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Physics

Michaela Barrera

Describe a skydivers jump from the airplane to the ground

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Physics

Nick Norris

This is a unit of electrical resistance

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Physics

Jace Blackburn

If a tennis ball has a velocity of 18 m/s and a momentum of 1.06 kg • m/s, what is the mass of the tennis ball in grams?

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