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A nuclear power plant operates at 79% of its maximumtheoretical (Carnot) efficiency between temperatures of660°C and 370°C. If the plant produces electric energyat the rate of 1.3 GW, how much exhaust heat is discharged perhour?
J/h
Two events occur in an inertial system K as follows: Event 1: x1 = a t1 = 2a/c y1 = 0 z1 = 0 Event 2: x2 = 2a t2 = 3a/2c y2 = 0 z2 = 0 In what frame K’ will these events appear to be simultaneous? Is there a frame K’ in which the two events described..
A 3.0 m tall, 60 cm diameter concrete column supports a 205,000 kg load. By how much is the column compressed
A refrigerator has a 1000 W compressor, but the compressor runs only 20% of the time, If electricity costs $0.10/kWh, what is the monthly (30 day) cost of running the refrigerator
A pair of closely spaced parallel conducting plates, charged with equal and opposite electric charges, produces a uniform electric field in the region between them, What must the strength of the electric field be
A 1.4Kg block and a 2.6kg block are attached to opposite ends of a light rope. what is the acceleration of the lighter block
A hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake. When the sphere comes to rest, what fraction of its volume will be submerged
A group of hikers hear an echo 2.50 s after they shout. If the temperature is 28°C, how far away is the mountain that reflected the sound wave.
A long, straight horizontal wire carries a current of 2.85 directed toward the right. What would be the magnitude of the magnetic force if the electron were instead moving parallel to the wire
Two blocks, each of mass m = 1.4 kg, are pushed along the horizontal surface of a table by a horizontal force P of magnitude 4.7 N, Find the frictional force acting on the upper block
The car accelerates uniformly to a speed of 2.05 m/s in 13.0 s and then continues at constant velocity.
A system consisting of one positively charged particle and onenegatively charged particle is altered by an outside force so thatits potential energy increases by 6.25 mJ. There is no changein kinetic energy between the initial and final states of ..
The position vector of a particle of mass 2.00 kg as a function of time is given by r =(2ti+3t^2j), Determine the angular momentum (in kg-m^2/s) of the particle about the origin at t = 4 s
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