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Studies have concluded that a college degree is a very good investment. Suppose that a college graduate earns about 75% more money per hour than a high-school graduate. If the lifetime earnings of a high-school graduate average $1,200,000, what is the expected value of earning a college degree?
a piston-cylinder assembly contains 1kg of water initially occupying a volume of 0.5m3 at 1bar. energy transfer by heat
Determine the change in entropy for 1.0 mole of an ideal gas originally confined to one-half of a 5.0-L container when the gas is allowed to expand to fill the entire container at constant temperature.
Determine the force P required to force the 10° wedge under the 90-kg uniform crate which rests against the small stop at A. The coefficient of friction for all surfaces is 0.40.
a disk cam rotates at a constant speed of 300 rpm and drives a translating roller follower through a rise of 1.5 inches
the 22 kg block is towed up the ramp of the 43kg cart using the motor mounted on the side of the cartif the motor winds
an air compressor is powered by a 2hp motor assume this is all input to the compressor. the inlet pressure and
steam with 88.6% quality and a flow rate of 750 kg/s enters a condenser operating @ 75 KPa. Saturated liquid leaves the condenser. How much heat is rejected to the cooling system.
the motion of a particle is defined by the equations and x 2t t2m and yt2m where t is in seconds.a determine the
a one sixth scale model of an automaobile is to be tested in a wind tunnel at a speed corresponding to the prototype
A vessel, divided into two parts by a partition, contains 6 mol of N2 gas at 65oC and 30 bar at one side of the partition and 5 mol of Ar at 140oC and 20 bar on the other. If the partition is removed and the gases mix adiabatically and completely, wh..
When train A is 6 km south of the crossing bridge, train B is 8 km east. Determine the shortest distance between the two trains and the time from these initial positions that they take to reach it.
the azimuth from station a of a link traverse to an azimuth mark is 212o 12 36. the azimuth from the last station of
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