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The earth spins on its axis once a day and orbits the sun once a year (365.24 days). Take the positive direction for the angular displacement to be the direction of the earth's motion.
(a) Determine the average angular velocity of the earth as it spins on its axis.
(b) Determine its angular velocity as it revolves around the sun.
A circular disk with a radius of 0.65 meters and mass of 0.26 kg has a hole cut in the middle.
A 82 kg diver steps off a 12 m tower and drops from rest straight down into the water. If he comes to rest 4.0 m beneath the surface, find out the average resistance force exerted on him by the water.
A common measure for length in the publishing business is a point, defined as 1/72 inch. Illustrate what is an area of 0.50 gry squared in points squared? Round answer to the nearest hundreth.
Does the change in speed of the downward-moving rock agree with the magnitude of the speed change of the rock moving upward between the same elevations? Explain physically why it does or does not agree.
While taking a walk around your neighborhood, you see a flash of lightning hit the Earth in the distance. How far away did the lightning strike the ground
A board lies on top of 2 uniform cylinders that lie on a fixed plane inclined at an angle theta. what is the acceleration of the board
A gas increases in pressure from 2.0 atm to 6.0 atm at a constant volume of 1.0 m3 and then expands at constant pressure to a volume of 3.0 m3 before returning to its initial state. How much work is completed in one cycle.
A 1.5 kg crate falls from a height of 2.0 m onto a spring scale where the spring constant is 1.5 ´ 105 N/m. when you calculate the gravitational potential energy
A loud speaker is playing rock music. Consider the sound from it as a spherical wave. what is the sound intensity level
A curve is banked at an angle of 30 degrees with respect to the horizontal. what is the ideal speed for a motorist to take the curve when it is covered by glare ice
imagine someone drops an apple from a vertical distance.
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