The average wind speed of the two places is the same. One location has a constant wind speed of 10 m/s, while the other has a wind speed of 5 m/s for 12 hours a day and a wind speed of 15 m/s for the remaining 12 hours. Compare the total energy produced daily for the same wind turbine at two locations. (b)(b) Consider (a) for a place where the wind speed is 0 m/s for 12 hours a day and 20 m/s for 12 hours.

The average wind speed of the two places is the same. One location has a constant wind speed of 10 m/s, while the other has a wind speed of 5 m/s for 12 hours a day and a wind speed of 15 m/s for the remaining 12 hours. Compare the total energy produced daily for the same wind turbine at two locations. (b)(b) Consider (a) for a place where the wind speed is 0 m/s for 12 hours a day and 20 m/s for 12 hours.

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A student evaluates a weight loss program by calculating the number of times she would need to climb a 10.0 m high flight of steps in order to lose one pound (0.45 kg) of fat. Metabolizing 1.00 kg of fat can release 3.77 x 10'J of chemical energy and the body can convert about 21.2% of this into mechanical energy (the rest goes into internal energy.) HINT (a) How much mechanical energy (in J) can the body produce from 0.450 kg of fat? (b) How many trips up the flight of steps are required for the 52.0 kg student to lose 0.450 kg of fat? Ignore the relatively small amount of energy required to return down the stairs. trips Need Help? Read It Watch It
Let W = (2.70 ✕ 105 J) ln(Vf /Vi). Solve for the unknown quantity in each of the following cases: (a) the final volume Vf is three times the initial volume Vi W= ______Joules (b) the initial volume is 1.00 m3 and the work W is 3.25 ✕ 105 J Vf = ______ m3
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