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Show that the Carnot and isentropic Rankine cycle thermal efficiencies for an engine whose boiler produces dry saturated steam at 100. psia and whose condenser operates at 1.00 psia are 29.7% and 26.1%, respectively.
Draw the appropriate T-s and p-v diagrams for these cycles.
A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. Calculate the amount of energy stored in the capacitor
A coil of inductance 77 mH and unknown resistance and a 0.79 µF capacitor are connected in series with an alternating emf of frequency 900 Hz. If the phase constant among the applied voltage and the current is 75°, what is the resistance of the coil?
The critical angle for a certain liquid-air surface is42.0°. What is the index of refraction of the liquid
A piece of Styrofoam is completely submerged under water (ρ = 1000 kg/m^3). Evaluate the density of the Styrofoam
A solid aluminum ingot weighs 71 N in air. What is its volume
A lab class conducts a 1000 trial scattering probability experiment. Nine (9) target marbles were used on a 45.0 cm wide board. The marble diameter was calculated to be 1.48 cm.
Block A with mass 0.050 kg is released from rest at the rim of a frictionless hemispherical bowl that has radius R = 0.600 m. What is the speed of the combined object
a cell membrane has a resistance and a capacitance and thus a characteristic time constant. what is the time constant
A professor's office door is 0.89m wide, 2.0m high, and 4.0cm thick; has a mass of 25kg ; and pivots on frictionless hinges. When the door is open and at rest, the door closer exerts a torque of 4.5N?m
A 2.5hp electric motor on a water well pumps water from 10m below the surface. The density of water is 1.0 kg per liter. How many liters of water does the motor pump in 2.0hr
A flywheel has a constant angular deceleration of -2.36 rad/s2. Find the time required for the flywheel to come to rest
Often times during volcano eruptions the clouds have large static charge buildups that cause lightning to happen. What is the electric field at the ejected rock
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