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A child of mass m comes running towards a (M) marry-go-round (initially at rest) with a velocity v, and jumps on the edge of it.
A) Suppose that there is no friction at the center, find the final angular velocity of the marry-go-round and the child?
B) After some time another boy standing on the side, throws a bag of mass m' to the child on the marry-go-round as he passes him. Find how will that change the angular velocity?
C) What will happen if the child on the marry-go-round drops the bag to the ground?
A physicist visits a wealthy friend (marketing major) who has aswimming pool. The physicist (a theoretician) accidentally spills afew drops of suntan lotion and a thin oil film (n =1.23) spreads over the water.
q1. from t 0 to t 5.00 min a man stands still and from t 5.00 min to t 10.0 min he walks briskly in a straight line
During the pitching motion, a baseball pitcher exerted an average horizontal force of 60 N against the 0.15 kg baseball while moving it through a horizontal displacement of 2.0 m before he released it
Consider a uniformly volume-charged sphere of radius R and charge Q What is the electric potential on the surface of the sphere in terms of R, Q, and 0, choosing the zero reference point for the potential at the center of the sphere.
What would be the speed of the boxes while box B has fallen a distance of 0.5m? The coefficient of kinetic friction between box A and the surface it slides on is 0.20. Make use of conservation of energy.
four moles of an ideal gas are caused to expand from a volume v1 to a volume v2 2v1.a if the expansion is isothermal
A light bulb emits light uniformly in all directions. The average emitted power is 150.0 W. At a distance of 6 m from the bulb, determine he peak value of the electric field
A spherical pinball, initially at rest, rolls down a ramp inclined at 18 degrees relative to horizontal. Determine the translational speed
A bicyclist on a horizontal plane starts from rest and begins to pedal. The wheel of radius r = 0.345m has a constant angular acceleration of ? = 9.35rad/s2, What is the final angular velocity of the wheel
A curve in a highway has radius of curvature 130 m and is banked at 3.5°. On a day when the road is icy, what is the safest speed to go around the curve
A child's toy consists of a piece of plastic attached to a spring. The spring is compressed against the floor a distance of 1.2 cm, and the toy is released. If the spring constant is 103 N/m, what is the magnitude of the spring force acting on the..
A proton with a speed of 3.0 x 105 m/s falls through a potential difference V and thereby increases its speed to 9.0 x 105 m/s. Through what potential difference did the proton fall
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