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A nuclear power plant generates waste thermal energy at a rate of 1000 MW = 1000 × 106 W. Assume the heat of vaporization of a water is 2.256× 106 J/kg.
If this energy is transferred by hot water passing through tubes in the water in an evaporative cooling tower, how much water must evaporate to cool the plant per second?(delta m/ delta t)
How much water must evaporate to cool the plant per day? (delta m/ delta t)
A 51.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. If the woman balances on one heel, what pressure does she exert on the floor
When connected in series to a 110-V line, two resistors use one-fourth the power that is used when they are connected in parallel. what is the resistance of the other
The speed of sound in air at room temperature is 340 m/s. What is the frequency of a sound wave in air with wavelength 1.3 m
You measure an electric field of 1.37×106N/C at a distance of 0.159m from a point charge. What is the electric flux through the surface of a sphere
An ideal gas is at a temperature of 30 degrees C, find the number of particles per unit volume of the gas
A steel wire strung between two supports is initially horizontal when there is no tension on it. When a 9.5 kg painting is hung on the wire, the wire makes a 25° angle to the horizontal, as shown. Illustrate what is the diameter of the wire?
A Carnot engine extracts 850 J from a 600 K reservoir during each cycle and rejects 450 J to a cooler reservoir. Find the temperature of the cool reservoir
A sudden gust of wind gives the boat an acceleration a, What is the boat's speed 6.4s later when the gust subsides
An electron enters a region of constant electric field that is produced by a parallel-plate capaci- tor, find the velocity of the electron when it exits the capacitor
An artillery shell is launched on a flat, horizontal field at an angle of ? = 37.8° with respect to the horizontal and with an initial speed of v0 = 277 m/s. What is the horizontal distance covered by the shell after 9.26 s of flight? What is the ..
The planet Mercury has a mass that is 5.00% of that of Earth, and its gravitational acceleration is gmercury = 3.70 m/s2. a) How long does it take for a rock that is dropped from a height of 2.63 m to hit the ground on Mercury?
wo sources produce coherent light waves that come together at a detector located 1.60000 mm from one source, what is the longest possible value for the wavelength
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