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A 4.2 m diameter carousel merry-go-round is freely rotating with an angular velocity of w=.85 rad/s. its moment of inertia is 1420 kg m^2. FOur people stand at the edge, must off the carousel, each with a mass of 65 kg. The four suddenly sltep onto the carousel all at once.
I) What is the new angular velocity of the carousel after th people are on it?
II) Now all but on jump off, in a radial direction away from th center. What is th new angular velocity?
A converging lens (f = 12.4 cm) is located 31.8 cm to the left of a diverging lens (f = -5.4 cm). Find the overall magnification
The rock strikes the ground a horizontal distance of 44 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How long did the rock take to hit the ground? Give your answer in seconds to two d..
There is little or no interstellar dust or gas in which of the following galaxy types? What name is given to a galaxy with a smooth distribution ofbrightness and a round, spherical shape? Who developed the "tuning-fork" diagram connecting the differe..
A cone has radius R = 30.0 cm and is on a horizontal table. The angle formed by the height and side at the vertex = 60.0°. What is the magnitude of the net flux that enters the cone
A vertical container with base area measuring 14.0 cm by 17.0 cm isbeing filled with identical pieces of candy, each witha volumeof 54.0 mm3 and a massof 0.0202 g.
q1. two astronauts each having a mass of 95.0 kg are connected by a 10.0-m rope of negligible mass. they are isolated
A 98.0 cm pendulum is released from a small angle. After 124 oscillations the amplitude is one half of its original value. The damping is proportional to the speed of the pendulum bob. Find the value of the damping coefficient, ?, (in Hz).
A football punter accelerates a football from rest to a speed of 10 m/s during the time in which his toe is in contact with the ball (about 0.17 s)
A gas expands, changing its volume by +2.12×10-4 m3while at a constant pressure of 4.17×105 Pa. What is the work done by the gas on the surroundings
a solenoid is wound with a single layer of insulated copper wire of diameter 2.500 mm and has a diameter of 3.000 cm
Power transmission lines often use a form of electric current called alternating current, but in many regions, such as the Province of Quebec, high-voltage direct-current lines are used instead, What is the power loss due to resistance in the line
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. Liquid flows through the first segment at a speed of 5.0 m/s. What is the speed in the third segment
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