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A body of mass 1 kg is whirled in a horizontal plane at the end of a spring. The spring stiff ness is 5 kN m 1 and the initial distance from the centre of rotation to the centre of the body is 200 mm. What will be the extension of the spring at a rotational speed of 300 rpm?
the heat transfer rate through the walls and roof of a building is 3570 kjh per degree temperature difference between
the flywheel of a small punching machine rotates at 360 rpm. each punching operation requires 1500 ft-lb of work and it
air initially at a dry-bulb temperature of 45 degrees c and hr 10 is adiabatically humidified to hr 60.a determine
what is the reason for the change in enthalpy between the throttle valve and the evaporator in a practical refrigeration cycle that is using R12 refrigerant.
50 grams of nickel are melted together with 50 grams of copper, thereby forming 100 grams of a Ni-Cu alloy.
over a flat portion of the salt lake bed in utah the wind can blow at a relatively steady velocity of 9.6 ms. the flat
dry air having a mass flowrate of 2 kgs and a temperature of 300k merges with dry air flowing at 3 kgs and having a
What information do you need to know from the process engineering department to select suitable pipe? What information do you need to know from the structural engineering department to select suitable pipe?
a curved nozzle assembly that discharges to the atmosphere is shown. the nozzle mass is 4.5 kg and its internal volume
A refrigerating plant operating between temprature limit of 253k and 307k provides 4.5kJ/s of refrigerating effect. If the refrigerating efficiency of the plant is 0.76. calculate the power required to drive the plant.
The discharge coefficient of a Venturimeter was found to be constant for rates of flow exceeding a certain value. Show that for this condition the loss of head due to friction in the convergent parts of the meter can be expressed as KQ2 m where K is ..
The outside wall of a refrigerated storage room is 10m long and 3m high and is constructed with 100-mm concrete blocks ( k=0.935W/m C) and 10 cm of fiber insulation board (k=0.048W/m
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