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A nuclear power plant generates 3000 MW of heat energy from nuclear reactions in the reactor's core. This energy is used to boil water and produce high-pressure steam at 290?C. The steam spins a turbine, which produces 1200MW of electric power, then the steam is condensed and the water is cooled to 25?C before starting the cycle again.
A) What is the maximum possible thermal efficiency of the power plant?
B) What is the plant's actual efficiency?
A 100 arrow is shot perpendicularly from a bow whose effective spring constant is 500. If the bow is drawn 75 before shooting the arrow, to what height does arrow rise.
Calculate charges, current, potential difference.
Two protons are moving directly toward one another, When they are very far apart, their initial speeds are 2.77 106 m/s. What is the distance of closest approach
A lens has diameter of 30 mm, What is the lens' theoretical resolution limit (in nm) when it is used in air with light of 550-nm wavelength
In an L-R-C series circuit, the rms voltage across the resistor is 29.4V , across the capacitor it is 89.0 V, What is the rms voltage of the source
A 0.140-kg baseball is dropped and reaches a speed of 1.20 m/s just before it hits the ground and bounces. What is the change of the ball's momentum during the bounce
A 900N crate slides 12m down a ramp that makes an angle of 40 ? with the horizontal. how much thermal energy is created
Light from a laser beam with a wavelength of 600 nm passes through a narrow single slit and observed on a screen 1.5 m behind the slit. The first minimum of the diffraction pattern is 1.5 cm from the central maximum. How wide is the slit?
The height of a helicopter above the ground is given by h = 2.95t^3, where h is in meters and t is in seconds. At t = 2.50 s, the helicopter releases a small mailbag.
A point charge with a charge q1 = 2.60?C is held stationary at the origin. How much work is done by the electric force on q2
A 1000 kg airplane touches down on an icy runway, heading northward at 110 km/h. Find the speed and direction of the combined wreckage
A puck slides on a surface for 5.6 m before it stops. If it was moving at a velocity of 15 m/s and has a mass of 1.2 kg, what is the force of friction exerted on the puck
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