Author Question: A 2-kg ball is moving with a constant speed of 5 m/s in a horizontal circle whose radius is 50 cm. ... (Read 120 times)

Chelseaamend · **on:** Jul 29, 2018

A 2-kg ball is moving with a constant speed of 5 m/s in a horizontal circle whose radius is 50 cm. What is the magnitude of the net force on the ball?

A)

0 N

B)

20 N

C)

40 N

D)

50 N

E)

100 N

Question 2

The average energy dissipated in an inductor is

A)

zero.
B)

proportional to the inductance.
C)

proportional to both the inductance and frequency.
D)

proportional to the frequency.
E)

none of the above.