Determining the weight of the truck
A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, the boat sinks an additional 3.50 cm into the river. What is the weight of the truck?
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When the solar cells employ have an efficiency of 10%, what area of land is required to generate an output of 1000 MW? Suppose that the mean isolation is around 500 W/m^2.
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