Answer:
3)
Step-by-step explanation:
The work done changes the potential energy
ΔPE = mgΔh = 450(10)(50) = 225,000 = 225 kJ
power is the rate of doing work
P = 225000/5 = 45000 W = 45 kW
35 combinations of a starter and a main course.
1a, 1b, 1c, 1d, 1e, 1f, 1g
2a, 2b, 2c, 2d, 2e, 2f, 2g
3a, 3b, 3c, 3d, 3e, 3f, 3g
4a, 4b, 4c, 4d, 4e, 4f, 4g
5a, 5b, 5c, 5d, 5e, 5f, 5g
i hope this helps