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A hoop and a disk, both of 0.46- m radius and 3.0- kg mass, are released from the top of an inclined plane 3.0 m high and 9.0 m long. What is the speed of each when it reaches the bottom? Assume that they both roll without slipping. What is the speed of the hoop? What is the speed of the disk?
What was the displacement of the spring. An elevator and its load have a combined mass of 1400 kg. Find out the tension in the supporting cable when the elevator, originally moving downward at 12 m/s, is brought to rest with constant acceleration i..
An atomic nucleus of mass m travelling with speed v collides elastically with a target particle of mass 2.000m (at first at rest) and is scattered at 90.
Your 300 ml cup of coffee is too hot to drink when served at 92C.What is the mass of an ice cube, taken from a -19C freezer, that will cool your coffee to a pleasant 61C.
A conducting spherical shell with inner radius a and outer radius b has a positive charg Q located at its center. derive expressions for the electric field magnitude in terms of the distance r from the center
A solenoid has a cross-sectional area of 2.20 10-4 m2, consists of 200 turns per meter, and carries a current of 0.56 A. Find the average current induced in the coil
A concave makeup mirror is designed so that a person 26 cm in front of it sees an upright image magnified by a factor of two
An electric motor rotating a workshop grinding wheel at a rate of 81 rev/min is switched off. Suppose the wheel has a steady negative angular acceleration of magnitude 1.90 rad/s2.
An electron is then fired directly toward the center of the shell, from point P at distance r from the center of the shell (r >> R). What initial speed v0 is needed for the electron to just reach the shell before reversing direction.
At what average rate does the force from the cable. A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 15 {rm m}/{rm s} as the hand is 2.0 {rm m} above the ground.
Find out the angular velocity
What is velocity of the boat relative to the shore
the fact that it moves very slowly by sky would probably cause it to be named after Yurtle, the god of turtles.
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