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A 37.0 kg child runs with a speed of 2.50 m/s tangential to the rim of a stationary merry-go-round(Figure 1) . The merry-go-round has a moment of inertia of 546 kg m^2 and a radius of 2.41 m . When the child jumps onto the merry-go-round, the entire system begins to rotate.
(A) Calculate the initial kinetic energy of the system
(Ki units J).
(B) Calculate the final kinetic energy of the system
(Kf units J).
After reaching its maximum height, the ball moves into the hoop on its downward path, at 3.05 m above the ground. Using the principle of energy conservation,
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We place a 1 mole sample of an ideal monatomic gas in a cylinder with a piston and we heat the gas so it expands and performs work against the piston, How much heat does the gas absorb during the process
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Find the distance between the centers of the spheres.
What is final total energy of the system
What mass of water at 26.0 °C must be allowed to come to thermal equilibrium with a 1.69-kg cube of aluminum initially at 1.50 102 °C to lower the temperature of the aluminum to 74.6 °C? Assume any water turned to stream subsequently recondenses.
Assume a rocketship in deep space moves with constant acceleration equal to 9.8 m/s2, which gives the illusion of normal gravity during the flight. Estimate the time required by a rocketship to attain the speed of light and the distance travelled t..
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