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A typical nuclear reactor generates 1000MW (1000MJ/s) of electrical energy. In doing so, it produces 2000MW of "waste heat" that must be removed from the reactor to keep it from melting down. Many reactors are sited next to large bodies of water so that they can use the water for cooling. Consider a reactor where the intake water is at 18?C. State regulations limit the temperature of the output water to 30?C so as not to harm aquatic organisms.
How many liters of cooling water have to be pumped through the reactor each minute?
A 1300kg sports car accelerates from 0m/s to 26m/s in 13s. What is the average power of the engine?
The middle C string on a piano is under a tension of 992 N. The period and wavelength of a wave on this string are 3.82 ms and 1.39 m
A hollow, conducting sphere with an outer radius of 0.260m and an inner radius of 0.198m has a uniform surface charge density of +6.70×10^?6 C/m^2. What is the new charge density on the outside of the sphere
A current of 1.3 A flows through a 55.8 resistor for 5.2 min. How much heat was generated by the resistor
A cylindrical copper rod of length 1.2 m and cross-sectional area 4.8 cm2 is insulated to prevent heat loss through its surface, Find the rate at which heat is transferred along the rod
When the pressure on saturated liquid water is suddenly reduced to a lower pressure in an adiabatic and aergonic process, the liquid's temperature must also be reduced to reach a new equilibrium state.
A non-uniform beam of length 4.41m and weight 1.02kg makes an angle of 25.2 with the horizontal. Find the vertical component of the force exerted on the beam by the pivot
You are an astronaut (m = 100 kg) and travel to a planet that is the same radius and mass as the Earth, What is your apparent weight at the equator of this planet
A stone is thrown out the window of high rise builind at an angle of 37.5° to the horizontal with an initisl speed of 22.0 m/d. from what height was the stone launched
Light of wavelength 440nm in air shines on two slits5.50×10?2mm apart. The slits are immersed in water(n = 1.33), How far apart are the fringes on the screen
In frozen Minnesota the Winter Sports Carnival includes some unusual events. Since it is dangerous to run on ice, each runner runs on ice, With what speed does the crowd see the woman moving
A person jumps from the roof of a house 3.6-m high. When he strikes the ground below, Find his velocity just before his feet strike the ground
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