Troy pushes on a car for 7 seconds, during which he applies an impulse of
2000 kg•m/s. What force does he apply to the car?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

The speed of light can be used to measure the

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant