The electric field 10.0 cm from the surface of a copper ball of radius 5.00 cm is directed toward the ballâs center and has magnitude 9.00/times 10^2~/text{N/C}9.00Ã10 â2 ââ N/C. How much charge is on the surface of the ball?

There is a skier at the top of a ski slope. The skier has potential energy. What gives the skier his potential energy? A. his speed B. friction C. gravity D. his efficiency

A woman standing on a hill sees a flagpole that she knows is 35 ft tall. the angle of depression to the bottom of the pole is 14°, and the angle of elevation to the top of the pole is 18°. find her distance x from the pole.

Sunglasses have lenses made of dark glass that reduce the amount of daylight entering your eyes. Design a test using a light meter and a lamp to find out if the two lenses in a pair of sunglasses are equally effective.

The following diagram shows the path of a planet around the sun. Kepler discovered that

What is the difference between 56 computational power and 64 computational power in gpus?

A bobsledder pushes her sled across horizontal snow to get it going, then jumps in. After she jumps in, the sled gradually slows to a halt.

How can you predict the action of the element

How is the mass of a liquid substance affected after it freezes A) It increases. B) It decreases. C) It stays the same.

When a substance goes directly from a solid state to a gas state, as dry ice does, A. the line on the energy-vs.-temperature graph is horizontal. O B. it's called sublimation. I c. it's called deposition. O D. it's called fusion. E.

Three light bulbs are wired in series. What happens if one of these light bulbs burn out