Tow a boat at constant velocity
Question: The force (but not the power) required to tow a boat at constant velocity is proportional to the speed. If a speed of 3.3 km/h requires 6.6 kW, how much power (in kilowatts, kW) does a speed of 8.8 km/h require?
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An object is in front of a converging lens (f = 0.40 m). The magnification of the lens is m = 2.1. Relative to the lens, through what distance should the object be moved so that the magnification changes to m = -2.1?
Kyle worked as a free-lance software engineer for the first three months of 2014. During that time, he earned $90,000 of self-employment income.
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The force (but not the power) required to tow a boat at constant velocity is proportional to the speed. If a speed of 3.3 km/h requires 6.6 kW, how much power (in kilowatts, kW) does a speed of 8.8 km/h require?
The molarity of 25% ammonium, hydroxide is 13.4 M. Both are sold in 2.5 L bottles. If there were an accident and the two bottles broke and the acid and base mixed, how much heat would evolve?
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How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4480 km above the surface?
A small mill town in Georgia has a clothing factory that employs about 35% of the working population. Many years ago a creative accountant came up with an idea. Instead of paying Christmas bonuses to the workers.
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