How long would it take for a sound impulse to travel through a copper rod 25 kilometers long? the speed of copper is 3,500

0.071 sec

0.14 sec

7.1 sec

140 sec

A baseball strikes a baseball mitt. what type of energy is transferred in this interaction

A push or pull on an object

A ball with a mass of 0.25 kg hits a gym ceiling with a force of 78.0 n. what happens next? a. the ball accelerates downward with a force of 80.5 n. b. the ball accelerates downward with a force of 78.0 n. c.

What is the basic unit of the nervous system?

When charging an object by conduction, what happens to the charges in the object? A. Electrons move, giving the object a static charge. B. The object is forced to generate extra electrons because of the electric field. C.

Why does an object's mass and speed cause it to have kinetic energy?

Eratosthenes used what object to determine the size of Earth? A) Pyramids in Giza, B) Tower in Babel, C) Sphinx in Alezandria, D) Well in Alexandria

A major process by which the Sun's energy is transported around the Earth system?

Charge 1 is - 30 μC, charge 2 is 5 μC, the distance between the charges is 8 cm, and they are located in a vacuum. If the third charge of 3 μC would be placed into position B, i. e.

For water vapor to turn back i to a liquid what do you do to it's temperature