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Determine the magnitude of the couple forces F so that the resultant couple moment on the crank is zero.: Determine the magnitude of the couple forces F so that the resultant couple moment on the crank is zero.
If a particle of mass 4.9 kg is moving east at 10 m/s and a particle of mass 19 kg is moving west at 10 m/s, what is the velocity of the center of mass of the pair
A 0.4-kg object is traveling to the right (in the positive direction) with a speed of 2 m/s. obtain the magnitude of the impulse (in N-s) acting on the object
The hydraulic turbines in a water-power plant rotate at 60rpm and are rated at 20, 000 hp. The 30 in-diameter shaft between the turbine and the generator is made of steel (G = 12, 000 ksi) and is 20 ft long. Determine (a) The maximum shearing stress ..
An ideal gas at 300k has a volume of 15 liters at 15atm. calculate the final volume of the system, the work done by the system, the heat entering or leaving the system, the change in internal energy and the change in the enthalpy when the gas unde..
Since astronauts in orbit are apparently weightless, a clever method of measuring their masses is needed to monitor their mass gains or losses to adjust diets. Calculate her mass
assume that the total heat of vapourization 540 calg of water is just sufficient to supply the energy needed to tear 1
The Physics of Radiology shows the MTF of a screen film for mammography and the MTF of a high-speed screen-film (curves C and D, panel b). Give two physical reasons why the mammography screen-film has a higher geometric resolution.
A block is projected with a speed of 3.0m/s on a horizontal plane. compute how far does the block slide before coming to rest
The intensity in normal conversation, when about50 cm from the speaker, Estimate the power output of sound from a person speaking in normal conversation
A cart for hauling ore out of a gold mine has a mass of 447 kg, including its load. Calculate the work done on the cart during the process by friction
A vertical spring launches a 50 g ball upward. The spring constant is 12 N/m. The spring is initially compressed 5 cm. The spring is then released pushing the ball upward. Will the ball leave the spring?
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground to reach that height
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