Question

How much work can a 1000-watt motor do in 5.0 seconds?

A. 4.0 × 101 J

B. 2.0 × 102 J

C. 5.0 × 103 J

D. 2.5 × 104 J

Answer 1

Answer:

C

Explanation:

watt = j/sec     and work  = j    

so multiply   watt * sec to get  work

1000 j/sec  *  5 sec = 5000 j  = 5 x 10^3