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A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, as the drawing shows. (? = 66.5°) Suppose the total mass of a chair and its occupant is 238 kg.
(a) Determine the tension in the cable attached to the chair.
_______ N
(b) Find the speed of the chair.
______ m/s
An open-topped tank completely filled with water has a release valve near its bottom. The valve is 1.87 m below the water surface. Calculate the speed of the water as it exits the valve
A cardinal (Richmondena cardinalis) of mass 3.80×10-2 kg and a baseball of mass 0.146 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p_c of momentum to magnitude p_b of the baseball's momentum.
A person starts from rest at the top of a large frictionless spherical surface, and slides into the water below. at what angle does the person leave the surface
A converging lens with a focal length of 6.60cm forms an image of a 3.20mm -tall real object that is to the left of the lens. Where are the object and image located
A woman on a bridge 104 m high sees a raft floating at a constant speed on the river below, She drops a stone from rest in an attempt to hit the raft, Find the speed of the raft
A resistor is connected to a battery with negligible internal resistance. by what factor does the power dissipated in the circuit change
A 32 cm long solenoid, 1.8 cm in diameter, is to produce a 0.24 T magnetic field at its center. If the maximum current is 5.7 A, how many turns must the solenoid have
A block of weight W can slide on a horizontal surface. A force of W/n1 is applied to the right that causes the block to accelerate with acceleration equal to g/n2. g is the acceleration by reason of gravity. If the coefficient of kinetic friction is ..
A current of 18.0 mA is maintained in a single circular loop of 3.70 m circumference. Calculate the magnetic moment of the loop.
A 2000kg car accelerates from 20 to 60km/h on an uphill road. Determine the work done by the engine
How far would trampoline stretch if the performer stands still on it while taking a bow.
When one person was talking in a small room, sound intensity level was 60dB everywhere within the room. Then, there were 14 people talking in similar manner at the same time in the room, what was the resulting sound intensity level.
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