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A metal ring having an outside radius of 38.0 cm, and an inside radius of 30.5 cm, has a mass of 15.0 kg. The ring falls off the back of a speeding truck, and rolls without slipping at a speed of 45.0 Km/hr.
A. What is the moment of inertia of the ring?
B. What is the total kinetic energy of the ring?
C. If friction causes the ring to stop in 500m, how much work did friction do?
Suppose the first coil of wire illustrated in the simulation is wound around the iron core 9 times. Find the magnitude of the emf induced in the coil
approsimate the terminal speed of a wooden sphere (density 0.890 g/cm3) falling through air, if its radius is 9.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.)
An airplane must reach a speed of 186mi/h to take off. If the runway is 488m long, what is the minimum value of acceleration that will allow the airplane to take off successfully.
In one inertial frame (the Home Frame), two events are observed to occur at the same place but ?t = 32 ns apart in time. What is the coordinate time interval between the events in the Other Frame
The position of a particle in cm is given by x = (7) cos 9?t, where t is in seconds, What is the frequency, What is the period, What is the amplitude of the particle's motion
The flywheel in a car is a solid cylinder with a mass of 100 kg, a radius of 11 cm, and a length of 5.0 cm. What is the kinetic energy of the cylinder
A positive charge of q1 is located 4.40 m to the left of a negative charge q2. The charges have different magnitudes. How far to the left of the negative charge is one spot
How much greater is an angular momentum of the Earth orbiting about the sun than the moon orbiting about the Earth? (Set up a ratio of angular momenta using data on inside back cover. The period of the moon is about 27.3 days.)
When a uniform electric field directed horizontally (from left to right) is introduced, equilibrium is eventually established with the mass hanging at an angle
The average density of a fish can be found by first weighing it in air and then finding the scale reading for the fish completely immersed in water, what is the average density of the fish
A small block is attached to an ideal spring and is moving in SHM on a horizontal, frictionless surface. When the amplitude of the motion is 0.090m , it takes the block 2.90s to travel from x= 0.090m tox= -0.090m.
boy goes to market with a average speed of 29 km/h.He returns back half the way he went with a average speed of 40 km/h. Find average speed for whole journey.
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