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Determine the maximum possible thermal efficiency of an atmospheric steam engine with a boiler temperature of 212°F and a condensation temperature of 70.0°F if it operates on
a. A Carnot cycle.
b. A Newcomen cycle assuming an average cylinder wall temperature of 141°F.
c. A Rankine cycle.
Vector a has a magnitude of 15 units and points die east. Vector b points due south. What is the magnitude of b if a-b has a magnitude of 25 units
A golfer, putting on a green, needs three strokes to "hole the ball." Through the first putt, the ball rolls 5.2 m due east. For the second putt, the ball travels 1.8 m at an angle 20°north of east. The third putt is 0.50 m due north.
The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter, Find the power consumed by the air filter
A uniform 1.6-kg rod that is 0.91 m long is suspended at rest from the ceiling by two springs, one at each end. Find the angle that the rod makes with the horizontal
A 77.0-? resistor is connected in series with a 32.0-µF capacitor and a source whose maximum voltage is 123 V, operating at 60.0 Hz. Find the capacitive reactance of the circuit
A disk of mass m1 and radius R1 is rotating about the center around a thin axle with an initial angular velocity of ω. Evaluate the initial angular momentum of the system
A flywheel turns through 36 rev as it slows from an angular speed of 4.8 rad/s to a stop. Suppose a constant angular acceleration, compute the time for it to come to rest
A 315 kg sailboat has an acceleration of 0.72 m/s2 at an angle of 33° north of east. compute direction of the net force that acts on the sailboat
a positive charge q 8000.00 is uniformly distributed over the volume of a sphere of radius r 7.00 . suppose a
The speed of an ion in a particle accelerator is doubled from 0.4500c to 0.9000c. Determine the magnitude of its final relativistic momentum
an automobile with a mass of 1000kg including passengers settles 1.0cm closer to thenbspground for every 100kg of
If you halved the radius with all other quantities left unchanged, how much would the critical velocity change
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