Find the speed of a point on the blade
A helicopter propeller blade starts from rest and experiences a constant angular acceleration of 14.5 rad/s2. Find the speed of a point on the blade 2.15 m from the axis of rotation when the blade has completed 16 revolutions.
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A sphere of radius r starts from rest and rolls without slipping along a curved surface, dropping through a vertical distance of 0.440 m. Find the final speed v of the sphere's center of mass.
Determine (a) the effectiveness of the regenerator, (b) the rate of heat removal from the refrigerated space, and (c) the COP of the cycle.
A 2.00L sample of O2 (g) was collected in a flexible container, like a balloon, over water at 25 degrees celcius and an atmostpheric pressure of 785 torr.
Determine (a) the degrees of subcooling of the refrigerant in the condenser, (b) the mass flow rate of the refrigerant, (c) the heating load and the COP of the heat pump
Assuming the turbines and the pumps to be isentropic, and determine the mass flow rate of steam through the boiler for a net power output of 15 MW.
"Suppose a reversible heat pump transfers heat from the outdoors at 0 degrees C to a room at 20 degrees Celsius. For each Joule of work input to the heat pump, how much heat will be deposited in the room?"
A battleship simultaneously fires two shells toward two identical enemy ships. One shell hits ship A, which is close by, and the other hits ship B, which is farther away. The two shells are fired at the same speed.
Determine (a) the mass flow rate of isobutene in the binary cycle, (b) the net power outputs of both the flashing and the binary sections of the plant.
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