A ball rolls down a ramp for 15 seconds. If the initial velocity of the ball was 0.8m/s and the final velocity was 7m/s, what was the acceleration of the ball?

In electromagnetic waves, frequency is inversely proportional to what?

A rectangular metal plate measures 0.24 m long and 0.9 m wide. The plate is heated to a temperature of 1,033 K by passing a current through it. Assuming that it behaves like a blackbody, how much power does the plate radiate under these conditions?

The outermost layer of earth is called the mantle

To determine the amplitude of a wave, you would need to know the

Which of Newton's laws says that an object in motion stays in motion, and an object at rest stays at rest unless acted upon by a force? third second first

A spring with a spring constant of 1200 N/m has a 55-g ball at its end. The energy of the system is 5.5J. What is the amplitude of vibration?

Force F1 acts on a particle and does work W1. Force F2 acts simultaneously on the particle and does work W2. The speed of the particle does not change. Which one of the following must be true? a. W1 is zero, and W2 is positiveb. W1 = - W2c.

The amplitude of a sound is the Group of answer choices frequency of the sound. magnitude of displacement of a sound pressure wave. psychological aspect of sound related to timbre. amount of sound energy falling on a unit area.

Air at 38°C and 97% relative humidity is to be cooled to 18°C and fed into a plant area at a rate of 510 m/min. a. Calculate the rate (kg/min) at which water condenses. b.

a 7.26kg bowling ball (16 pounds) is at rest at the end of the bowling lane. : how long did you push the ball in this situation