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(a) How much gravitational potential energy (relative to the ground on which it is built) is stored in an Egyptian pyramid, given its mass is about 7 ? 109 kg and its center of mass is 40.0 m above the surrounding ground?
(b) What is the ratio of this energy to the daily food intake of a person (1.2 ? 107 J)?
A certain spring stretches 6 centimeter when a force of 6 Newton is applied to it. Suppose 5 kilogram mass is attached to the spring, Define equation for the position of the mass as a function of time
A small, 1.80-mm-diameter circular loop with R = 1.00×10-2 ohms is at the center of a large 110-mm-diameter circular loop. What is the induced current on the inner loop
A single-stage rocket is in deep space coasting at [velocity (rocket, initial)] = 2.5 × 103 m/s. What is the rocket's speed [Velocity (rocket, final)] after it has lost one-third of its inertia by exhausting burned fuel
A worker is poling a ship across a shallow lake. He pushes parallel to the length of the light pole exerting on the bottom of the lake a force of 235 Newton. Calculate the magnitude of this force
If a photon undergoes Compton scattering and experiences a fractional wavelength change of +7.25%, calculate the angle at which the scattered photons are directed if the original photons have a wavelength of 0.00335 nm. (The photons are scattered ..
A rocket is launched from rest with a time-dependent acceleration a(t) = (p – rt), where p = 27.50 m/s2 and r = 2.00 m/s3. Discover the maximum velocity of the rocket.
a spring oscillator is designed with a mass of 0.232kg. it operates while immersed in a damping fluid selected so
To what frequency must the homesick captain tune the ship's radio to receive the broadcast? (Round your answer to three significant figures.)
A capacitor consists of two parallel plates, each with an area of 17.0cm2 , separated by a distance of 0.150cm. How much energy is stored in the charged capacitor
Imagine Punch lives on the Earth at rest. Judy traveling past the earth with a speed of 0.600 c. What is the speed of the rocket seen by Judy in terms of the speed of the light
A dolphin in seawater at a temperature of 25 °C emits a sound wave directed toward the ocean floor 246 m below. How much time passes before it hears an echo? (The speed of sound in ocean water is 1533 m/s.)
How much electrical energy is consumed in the process and at what power does the refrigerator operate? How much heat is released into the environment of the freezer?
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