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A child of mass 54.7 kg sits on the edge of a merry-go-round with radius 2 m and moment of inertia 172.852 kg m2. The merry-go-round rotates with an angular velocity of 1.6 rad/s.The child then walks towards the center of the merry-go-round and stops at a distance 0.72 m from the center. Now what is the angular velocity of the merry-go-round? Answer in units of rad/s.
q1. a person stands between two speakers connected to the same source. each speaker produces a tone with a frequency of
A flat coil enclosing an area of 0.08 m2 is rotating at 57 rev/s, If there are 998 turns on the coil, what is the maximum voltage induced in the coil
Consider a beam as shown in the figure that is 2 m long and supported by a rope. It is pressed against the wall. what is the tension in the rope
The potential at the surface of a 25.0 cm radius sphere is 5.1 kV. What is the charge on the sphere
Two point charges are separated by 1.00 x 10-2 m. One charge is -2.8 x 10-8 C; and the other is +2.8 x 10-8 C. The points A and B are located 2.5 x 10-3 m from the lower and upper point charges as shown. If an electron, which has a charge of 1.60 x 1..
a woman on a bridge 96.0 m high sees a raft floating at a constant speed on the river below. she drops a stone from
Find the temperatures as a function of x and t if both faces are maintained at 0°C. Solve for the temperatures at t = 2.062 seconds.
A 2 kg car moving towards the right at 4 m/s collides head on with an 8 kg car moving towards the left at 2 m/s, After the collision, the velocity of the combined bodies is
In a machine shop,a hydraulic lift is used to raise heavy equipment forrepairs. What force must be applied to the small piston inorder to lift the engine in units of N
A bicycle rim has a diameter of 0.65 {\rm m} and a moment of inertia, gauged about its center, of 0.25 {\rm kg}\cdot{\rm m^2}.What is the mass of the rim? Express your answer to two important figures and include the appropriate units.
a commercial aircraft is going from jfk airport to ohare airport at a cruising speed of 650 kmh measured relative to
The power supplied to a typical black-and-white television set is88 W when the set is connected to 120V. How much electrical energy does this setconsume in 1 hour?
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