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A person A is trying to keep his balance while on sled B that is sliding down an icy incline . Letting mA = 78 kg and mB = 25 kg be the masses of A and B, respectively, and assuming that there is enough friction between A and B for A not to slide with respect to B, determine the value of the normal reaction force between A and B as well as the magnitude of their acceleration if θ = 20 degrees. Friction between the seld and the incline is negligible.
saturated water vapor is enclosed in a piston cylinder arrangement with a volume v initial 5 liters at a temperature
a hail storm caused nearly golf-ball sized hail to fall on a house. the hailstones were nearly spherical with a
a more desirable color is 39 pigment a 27 pigment b 25.2 pigment c and 8.8 pigment d. using gauss-seidel method
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a heat pump is used to maintain a house at a constant temperature of 23degc. the house is losing heat to the outside
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consider a carnot-cycle refrigerator with ammonia as the working fluid. heat is rejected from the ammonia at 20 deg c
a system consists of 2kg of co2 gas initially at state 1 where p11 bar and t1300k. the system undergoes a power cycle
a a disk has a radius of 2 cm and weighs 12 kg. what is the required constant moment to rotate the disk from rest to a
assume that the heat treatment supervisor in charge of processing the some gears is on an economy program directed
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