what's velocity in physics

Which of the following gives the best description of the motion of electrons in a conductor? A. The electrons in conductors usually move in straight lines. B. The electrons in conductors are able to move about freely. C.

Which of the following statements about igneous rocks is correct?

In order to move a bag of dog food across a 10 meter room, you apply 20 newtons of force. How much work was done? 2 joules 10 joules 30 joules 200 joules

Three guys are standing in a row, facing a solid, high wall. Guy A is 10 m from the wall, B is 20 m away from the wall, and C is 30 m away from it. Guy B shouts. Will any other guy be able to hear an echo of Guy B's shout?

At which angle must a laser beam enter the water for no refraction to occur?

Suppose the truck that's transporting the box In Example 6.10 (p. 150) is driving at a constant speed and then brakes and slows at a constant acceleration.

Transpiration is part of what cycle? The carbon cycle The nitrogen cycle The oxygen cycle The water cycle

What causes the pressure to increase as you go deeper below the crust?

A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force exerted on a 0.0300-kg bullet to accelerate it to a speed of 600 m/s in a time of 2.00 ms (milliseconds) ?

Why are the sedimentary layers at capitol reef tilted?