1)
10,000 joules
2).
20 watts
3). 15 meters
5).
12.5 newtons
From the part where you got all fouled up and didn't go back and unfoul it:
P = 25 watts
W = 5000 Joules
t = 200 seconds
P= 170 watts
t = 20 seconds
W = 3,400 joules
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