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The cold cranking amperes (CCA) of a conventional lead-acid automobile battery is the amount of current the battery can provide at 0°F for 30 seconds and minute in at least 1.2 volts per cell (or 7.2 volts for a standard 12-volt battery). If a battery is rated for 700 CCA, how much work will it deliver to the starter motor, assuming the minimum voltage (7.2 V) and maximum time (30 s) are required?
Evaluate the effect of the water spray on efficiency (net work out divided by heat input) and net power out per kg/s of dry air coming into the turbine.
a solid shaft 200 mm in diameter rotates at f 20 revsec and is subjected to a bending moment of 21p kn.m. determine
Air at 14.7 psia, 50oF, and 60% relative humidity is first heated to 72 o F in a heating section and then humidified by introducing water vapor. The air leaves the humidifying section at 75oF and 55% relative humidity.
a. calculate the density of air in lbmft3 at standard conditions 75f and 14.7 psia assume m 28.9 lbmlb-mol.b.
Air enters an adiabatic nozzle at 5.18 MPa and 400K with a velocity of 20 m/s. The air exits at 2.00MPa. Determine the maximum exit velocity for this nozzle.
determine if a simple supported w12 x 26 a36 steel beam has the capacity to support loads that produce 50ksi of
a boat of length 50 m is designed to cruise at 30 mph and is to be tested in a tow tank with a model of length 0.5 m.
Also determine the axial force and deformation of the diameter due to temperature rise. Let E = 120 GPa and Co-efficient of linear thermal expansion = 0.0000168 per °C.
a tube of diameter 50 mm having a surface temperature of 85degc is embedded in the center plane of a concrete slab
a body with the shape of a rectangular parallelepiped moves without slipping on two cylindrical rollers. the mass os
a well insulated piston cylinder device containing 3 lbm of water is compressed using 601 kj of energy. initially the
if the 50 kg. crate starts from rest and attains a speed of 6ms when it has traveled a distance of 15m. determine the
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