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At a coal-burning power plant a steam turbine is operated with a power output of 607 MW. The thermal efficiency of the power plant is 32.3 percent. Find at what rate is heat discarded to the atmosphere by this power plant?
GW
The athlete shown in the figure rotates a 1.00 kg discus along a circular path of radius 1.07 m. find the magnitude of the maximum radial acceleration of the discus
A converging lens with a focal length of 6.00cmforms an image of a 4.00mm -tall real object that is to the left of the lens. Where are the object and image located
In 1965 Arno Penzias and Robert Wilson discovered the cosmic background radiation (this is the radiation left over from the Big Bang!)
A candle is placed 1.270m in front of a converging lens. The image of the object is focused on a screen 1.376m behind the lens. What is the magnification of the image
While riding her bicycle on a 140 meter track, a rider took 18 seconds on her first lap and 17 seconds on her second
With brakes fully applied, a 1550 kg car deccelerates from a speed of 78.0 km/hr. What is the change in the kinetic energy of the car
They then turn together around the spindle with their centers superposed. What is an angular frequency in of the combination.
Suppose a mangetic field of 7.45 mT is pointing into a piece of paper and then we shoot a small charged metal ball, 4.8 grams and +1.52 uC, What is the magnitude and direction of the force on the particle
A 162 Ω resistor is connected to a variable power supply. What voltage will be required for a current of 0.6 A to flow in the resistor
A solid sphere and a solid disk of the same mass and radius are rolling wihtout slipping at the same speed. What is the ratio of their angular momentum
At the lowest point in a vertical dive (radius = .69 km), Determine the magnitude of the acceleration of the pilot
A ski tow operates on a 15.0degrees slope of lenth 300m. The rope moves at 12.0km/h and provides power for 50 riders at onetime, Estimate the power required to operate the tow
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