A wave has a wavelength of 0.05 m and a wave speed of 10 m/s. What is the
frequency of the wave?
A. 2.0 Hz B. 5.0 Hz
C. 0.50 Hz
D. 200 HZ

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.