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a pottery wheel is rotating initially with an angular velocity of 4.0rad/s clockwise. Sometime later it is rotating with an angular velocity of 9.0 rad/s counterclockwise. At the later time, the wheel is at an angle of 3.0 rad counterclockwise relative to the initial orientation of the wheel. Assuming that the whell undergoes uniform acceleration
a. what is the magnitude of the angular acceleration of the wheel?
b. what is the direction of the angular acceleration of the wheel?
Two trains, each having a speed of 27 km/h, are headed at each other on the same straight track, What is the total distance the bird travels before the trains collide
What is the magnitude of an average acceleration of the ball
Determine the mutual inductance per unit length between two long solenoids, one inside the other, whose radii are r1 and r2 (r2
A 13.30 kg crate is pulled by an 181N force (parallel to the incline) up a rough incline. Assume that the incline makes an angle of 31.80° with the horizontal and that the coefficient of kinetic friction is 0.436.
A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.78% upon becoming charged. Determine the effective spring con..
A mass on a string of unknown length oscillates as a pendulum with a period of 6 s. What is the period in the following situations, determine The mass is doubled
A 3.1 kg dog stands on a 15.00 kg flatboat at distance D = 6.1 m from the shore. It walks 2.00 m along the boat toward shore and then stops. Assume no friction between the boat and the water, find how far the dog is then from the shore.
A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round with a mass of 230kg is spinning at 17rpm, What is the merry-go-round's angular velocity, in rpm, after John jumps on
An object of mass 5 kg is moving with a momentum of 50 kg m/s. What is the objects speed? What is the objects kinetic energy
The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 28 m radius of curvature, What is the car's speed at the bottom of the dip
What is the magnitude of the accelerations of the masses, What is the magnitude of the accelerations of the masses
Two objects moving toward each other collide and rebound. Determine the change in kinetic energy of the smaller object
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