Physics, 18.01.2020 05:31 danielasena21
Two tiny, spherical water drops, with identical charges of -4.29 ã 10-16 c, have a center-to-center separation of 0.845 cm. a) what is the magnitude of the electrostatic force acting between them? b) how many excess electrons are on each drop, giving it its charge imbalance?
Answers: 3
Physics, 22.06.2019 12:30
An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.
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The safe load, l, of a wooden beam of width w, height h, and length l, supported at both ends, varies directly as the product of the width and the square of the height, and inversely as the length. a wooden beam 4 inches wide, 9 inches high, and 240 inches long can hold a load of 6810 pounds. what load would a beam 3 inches wide, 8 inches high, and 144 inches long, of the same material, support? (round off your answer to the nearest integer.)
Answers: 1
Two tiny, spherical water drops, with identical charges of -4.29 ã 10-16 c, have a center-to-center...
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