Answers to Power in Flowing Energy

starting with number 2...

2.
a) 1,800 J
b) 450 watts
3.
a) 60,000 J
b) 2,000 W; 2.68 hp
4.
a) 37,000 J with correct sig fig
b) 20 W with correct sig fig
5. 200 W
6.
a) 1.4 hours
b) 8,640,000 J
c) 17.3 apples
7.
a) 98,000 J
b) 98,000 W; 131 hp
8. 3.33 W