A 4400 W motor is used to do work. If the motor is used for 200 s, how much work could it do? (Power: P = W/t)
A. 22 J
B. 4200 J
C. 4600 J
D. 880,000 J

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.

Explain why electric current cannot exist if a current doesn't have a voltage source.

Apropagating wave in space with electric and magnetic components. these components oscillate at right angles to each other. it may travel in a vacuum. determine the term.