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A nuclear power plant generates 3000 MW of energy from nuclear reactions in reactor’s core. This energy is used to boil water and produce high pressure steam at 300 0C. The steam spins a turbine which produces 1000 MW of electrical power. The steam is then condensed and the water is cooled to 25 0C before starting the cycle again. A) What is the maximum thermal efficiency of the power plant? B) What is the plant’s actual efficiency? C) Cooling water flows through a condenser (The low temperature heat exchanger) at a rate of 1.2 x 10-8 L/hr. If the water enters the heat exchanger at 18 0C, what is its exit temperature?
A 1350 kg cannon, which fires a 70 kg shell with a speed of 606 m/s relative to the muzzle, At what angle with the ground is the shell projected
A car drives over a hilltop that has a radius of curvature 120 m at the top of the hill with a speed of 20.0m/s. What is the normal force felt by the car tires
Two speakers, one directly behind the other, are each generating a 295-Hz sound wave. What is the smallest separation distance between the speakers that would produce destructive interference at a listener standing in front of them? Take the speed..
An incoming 40 keV photon interacts with an atom by the Compton scattering process, what is the energy of the scattered photon
On a vacation flight, you look out the window of the jet and wonder about the forces exerted on the window. calculate the force exerted on the window by air pressure
A 5-kg cart moving to the right ( ALONG POSITIVE X AXIS) with a speed of 6 m/s collides with a concrete wall and rebounds with a speed of 2 m/s
In a certain time, light travels 4.88 km in a vacuum. During the same time, light travels only 3.19 km in a liquid. What is the refractive index of the liquid
During WWII some paratroopers landed in gliders instead of dropped by parachute. The gliders had no power of their own, Find the lift force provided by the glider's wings
An air mass has a temperature of 68F and 970hPa with a mixing ratio of 5 g/kg. Without any condensation or mixing the air mass now has a temperature of 50F and a pressure of 750hPa. Find the initial and final values of a) r, b) T(dew), and c) vapor p..
A resistance R carries a current I = (5 A) sin 120 ?t + (10 A) sin 240 ?t. What is the rms voltage across the resistor
A string fixed at both ends is 8.98 m long and has a mass of 0.125 kg. What is the longest possible wavelength for a standing wave
You are jumping down from a small ledge 0.7 m high onto a concrete floor. what is the force exerted onto your feet during the landing
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