Free-fall acceleration on the moon
A pendulum clock that works perfectly on Earth is taken to the Moon. Assume that the free-fall acceleration on the Moon is 1.63 m/s^2.
If the clock is started at 12:00 midnight, what will it read after 23.0 h? (Enter the time to the nearest minute.)
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Determine d so that the center of percussion will be at point A on the rim of the disk (the point about which the angular momentum is zero).
Estimate the maximum outlet velocity that this system could deliver. Determine the maximum force exerted on a rock face by this water jet.
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 21.5 s. (a) How tall is the tower?
Two ideal gases, A and B, are at the same temperature, volume andpressure. Gas A is reversibly expanded at constant temperature to avolume V.
A random sample of 70 voters found that 40% were going to vote for a certain candidate. Find the 99% limit for the population proportion of voters who will vote for that candidate.
A harmonic wave is traveling along a rope. It is observed that the oscillator that generates the wave completes 43.0 vibrations in 34.0 s. Also, a given maximum travels 430 cm along the rope in 9.0 s. What is the wavelength?
Heating oil is circulated in a circular conduitat an average velocity of 0.30 m/s. The diameter of the conduit is25 cm. The density of the oil is 810kg/m3.
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. He notes that it takes the wave 0.755 s to reach the opposite tower, 20.0 m away. If a 1 meter length of
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