Angular velocity of rotation of the earth
The numerical value of the angular velocity of rotation of the earth should be _____ rad/s in order to make the effective acceleration due to gravity at the equator equal to zero.
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Determine the turbocharger pressure ratio required to increase the air mass into the cylinder by a factor of two compared with nonturbo engine.
If the power input is 2150 hp, determine for the compressor (a) the isentropic compressor efficiency and (b) the rate of entropy production, in hp/degrees R. Ignore kinetic and potential energry effects.
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The mean annual salary of public classroom teachers is $49,000. Assume the standard deviation is $9,200. Do the following for the variable "annual salary"of classroom teachers. Determine the sampling distribution of the sample mean for samples of s
Air at 1175 K, 8 bar enters a turbine operating at steady state and expands adiabatically to 1 bar. The isentropic turbine efficiency is 92%.
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Amonia as a refrigerant enters the expansion valve at a pressure of 1.5 MPa and a temperature of 32 oC its pressure on leaving the expansion valve is 268 kPa calculate the quantity of the ammonia leaving the expansion valve.
Consider a neutron star whose mass is twice the mass of the Sun and whose radius is 12.3 km. If it rotates with a period of 3.03 s, what is the speed of a point on the Equator of this star?
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