Mason lifts a box off the ground and places it in a car that is 0.50 meters high. If he applies a force of 80 newtons to lift this suitcase, what is the

work done?

A.

B.

O joules

4.0 joules

C. 4.0 x 102 joules

D. 4.0 * 102 joules

Factfile about eclips

Which best describes the second law of thermodynamics? energy is not created nor destroyed, but it can change into matter. energy is not created nor destroyed, but it can change from one energy form to another.

An object with 274 J of GPE is 140cm above the ground. What is its mass?

Why does the speed of sound depend on air temperature?

A trooper is moving due south along the freeway at a speed of 23 m/s. at time t = 0, a red car passes the trooper. the red car moves with constant velocity of 51 m/s southward.

17. (16 pts) You set up a two-slit experiment with a laser that produces light with a wavelength of 600 nm.

At a distance of 0.182 cm from the center of a charged conducting sphere with radius 0.100cm, the electric field is 465 n/c. what is the electric field 0.598 cm from the center of the sphere?

A skier on a hill has 4000J of kinetic energy and 3000J of potential energy. After sliding down the hill a ways, their potential energy is 2000J.

Three ideal polarizing filters are stacked, with the polarizing axis of the second and third filters at 21 degrees and 61 degrees, respectively, to that of the first. If unpolarized light is incident on the stack, the light has intensity 60.

What is the purpose of the rorschach test