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A disk of radius 40cm is spinning at a constant angular velocity of 30radian/s.
(A) Find the velocity of a point on the rim of the disk.
(B) Find the acceleration of a point on the rim of the disk.
Ordinary glasses are worn in front of the eye and usually 2.00{\rm cm} in front of the eyeball. What focal length lenses are needed to correct his vision
A helicopter is ascending vertically with a speed of 5.03m/s. How much time does it take for the package to reach the ground
A size-5 soccer ball of diameter 22.6 cm and mass 426 g rolls up a hill without slipping, reaching a maximum height of 7.00 m above the base of the hill. At what rate was it rotating at the base of the hill
A 240g ball and a 130g ball are connected by a 32 cm-long massless, rigid rod. The structure rotates about its center of mass at 150rpm.
A large cruise ship of mass 6.70 107 kg has a speed of 13.0 m/s at some instant. How much work is required to stop it
a laser positioned on a ship is used to communicate with a small two man research submarine resting on the bottom of a lake. How far is the submarine from the side of the ship
Tarzan spies a 40kg chimpanzee in severe danger, so he swings to the rescue. He adjusts his strong, but very light, What are the frequency of Tarzan's swing
Shoveling snow can be extremely taxing since the arms have such a low efficiency in this activity. What is her useful power output
Your 2.20 kg physics book rests on a horizontal tabletop. Find the normal force on the book. Suppose you pull up on the book with a 15.0 N force
The longest "string" (a thick metal wire) on a particular piano is 3.0 m long and has a tension of 300.0 N. What is the total mass of the wire
A point mass on a Hooke's Law spring is pulled aside 10 cm from the center position and then released. Calculate the displacement of the point mass when t = 0.44s
Tim walks half of the time and runs the other half. In terms of given quantities, in the special case that, what will be Tim's margin of victory.
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