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A playground merry-go-round ofradius 2.00 m has a moment of inertia I = 325 kgm2 and isrotating about a frictionless vertical axle. As a child of mass25.0 kg stands at a distance of 1.00 m from the axle, the system(merry-go-round and child) rotates at the rate of 11.0 rev/min. The child then proceeds to walktoward the edge of the merry-go-round. What is the angular speed of the system when the child reaches the edge?
rad/s
On her way to visit Grandmother, Red Riding Hood sat down to rest and placed her 1.2 kg basket of goodies beside her. What is the acceleration of the basket
A nuclear power plant operates at 80% of its maximum theoretical (Carnot) efficiency between temperatures of 700°, how much exhaust heat is discharged per hour
A luggage handler pulls a suitcase of mass 30.8 KG up a ramp inclined at an angle 18.3 degrees above the horizontal by a force of magnitude 290 N that acts parallel to the ramp. Calculate the work done on the suitcase by the force
a large 17 kg roll of paper with radius r=19cm rests against the wall and is held in place by a bracket attached to a rod through the center of the roll. compute the magnitude of the angular acceleration of the roll
A thin metallic spherical shell of radius 41.6 cm has a total charge of 8.05 ?C uniformly distributed on it. At the center of the shell is placed a point charge of 2.83 C. What is the electric field at a distance of 23.9 cm from the center of the ..
A charge of 3.0 uC(micro C) and a second charge are initially far apart. find the magnitude of the unknown charge
Suppose that you want to find the equation for a line that passes through the two points (0,3) and (4,9). What is the slope of this line
A 1,699-kg satellite orbits the Earth in a circular orbit with a period of 6,016 s. How high above the Earth's surface is the satellite's orbit
an object has a kinetic energy of 312 J and a momentum of magnitude 20.3 kg × m / s 1, find the speed of the object
A battery of internal resistance r = 0.2 and emf E = 12.0 V. If the battery is charged by an external source with a charging current of 1.2 A. What is the potential difference across the battery
What is the ratio of the amplitude
After falling from rest from a height of 26 m, a 0.5 kg ball rebounds upward, reaching a height of 16 m. If the contact between ball and ground lasted 1.6 ms, Evaluate average force was exerted on the ball?
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