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A large turntable rotates about a fixed vertical axis, making onerevolution in 6.00 s. The momentof inertia of the turntable about this axis is 1200 kg · m2. A child of mass31.0 kg, initially standing atthe center of the turntable, runs out along a radius. What is the angular speed of the turntable when the child is 1.00 m from the center? (Assume that you cantreat the child as a particle.)rad/s?
When a resistor is connected across the terminals of an acgenerator (114 V) that has a fixedfrequency, there is a current of 0.485 Ain the resistor. When an inductor is connected across the terminals of this same generator, there is a current of 0..
A 900 g rubber ball is dropped from a height of 14 m and undergoes a perfectly elastic collision with the earth. What is the earth's velocity after the collision
A ball with v0 = 15 m/s collides with two identical balls which are lined up vertically as in the diagram below. Find the velocities of all three balls after the collision
A wedge of mass m = 25.0 kg is located on a plane that is inclined by an angle ? = 20.6° with respect to the horizontal. What is the acceleration of the wedge along the plane
A baseball is thrown horizontally at the catcher, who is 60.0 ft away. It is thrown with a velocity of 87.5 mph. How far does the baseball fall during this pitch.
a woman stands on a scale in a moving elevator. her mass is 70.5 kg and the combined mass of the elevator and scale is
A 1100 kg block of granite is pulled up an incline with L = 40.0 m at a constant speed of 1.06 m/s by a steam winch. What is the power of the winch
A sky-diver jumps out of a plane and achives (terminal velocity) before opening his parachute.Explain what is meant by the term terminal velocity,why it occurs and what value of velocity a typical sky diver might experience.Include references to your..
a car starts from rest on a curve with a radius of 110 m and accelerates at 0.900 ms2. how many revolutions will the
A thin film of oil is placed on a piece of glass. The oil has an index of refraction of 1.29 and the glass has an index of refraction of 1.56. how thick is the film
A 50.0-kg student climbs a 5.00-m-long rope and atops at the top. How much work does she do
If the acceleration of a 75 kg skydiver is 4m/s2, what is the net force on the skydiver
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