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A disk-shaped merry-go-round of radius 3.03 meter and mass 185 kilogram rotates freely with an angular speed of 0.621rev/s. A 64.4 kilogram person running tangential to the rim of the merry-go-round at 3.01 m/s jumps onto its rim and holds on. Before jumping on the merry-go-round, the person was moving in the same direction as the merry-go-round's rim. Evaluate the final angular speed of the merry-go-round?
A crab eater seal jumps onto a horizontal ice floe with an initial velocity of 6 m/s horizontally. Determine how far does the seal slide
A roller coaster travels at 98.9ft at an angle of 42.9 above the horizontal. How far does it move horizontally
A force F produces an acceleration a on an object of mass m=2 kg. a force 4F IS exerted on a second object and an acceleration of 8a results. ( this means that if four times the original force is exerted , a new object accelerates by an amount equal ..
Johnie wants to go sailing, but their is no wind. Johnie mounts an Industrial Fan on his sail boat with a 40 N force. What is the speed of the boat
A 0.70kg piece of lead at a temperature of 160C is dumped into 800mL of water at a temperature of 22C , How much heat flowed in this process
A wave pulse travels down a slinky. The mass of the slinky is m = 0.88 kilogram and is initially stretched to a length L = 7.3 meter. Evaluate the new mass density of the slinky
a two-dimensional electrostatic field varies with the coordinates x and y but is independent of z. show that the
The place you get your hair cut has two nearly parallel mirrors 7.0 m apart. As you sit in the chair, your head is 1.0 m from the nearer mirror. Looking toward this mirror, you first see your face and then, farther away, the back of your head.
Find how much ice at a temperature of -21.8oC must be dropped into the water so that the final temperature of the system will be 22.0oC
An airplane propeller is rotating at 1250rpm. Compute the propeller's angular velocity
A car drives straight off the edge of a cliff that is58 m high. How fast was the car traveling when it went over the cliff
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. Find the total sound intensity that the man hears when he is at his initial position halfway between the speakers
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