Physics, 01.08.2021 17:10, StephanieQueen2003
Two friends are carrying a 200-kg crate up a flight of stairs. The crate is 1.25 m long and 0.500 m high, and its center of gravity is at its center. The stairs make a 45.0° angle with respect to the floor. The crate also is carried at a 45.0° angle, so that its bottom side is parallel to the slope of the stairs (Fig. 2). If the force each person applies is vertical, what is the magnitude of each of these forces?
Answers: 1
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If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)
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Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.
Answers: 1
Two friends are carrying a 200-kg crate up a flight of stairs. The crate is 1.25 m long and 0.500 m...
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