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a weather vane initially at rest has a moment of inertia of 0103 kg middot m2 about its axis of rotation a 710 g piece
a 185 kg mass is attached to a light cord that is wrapped around a pulley of radius 255 cm which turns with negligible
a baseball pitcher pivots his extended arm about his shoulder joint applying a constant torque of 197 n middot m for
as a bowling ball of radius 140 cm rolls down the alley to the right a frictional force of magnitude 122 n directed to
a 94-kg watermelon 30 degreesand a 78-kg pumpkin 53 degrees attached to each other via a cord that wraps over a pulley
a merry-go-round starts from rest and accelerates uniformly over 165 s to a final angular velocity of 765 revmina find
a bullet of mass 111 g is fired into an initially stationary block and comes to rest in the block the block of mass 121
an object of mass 526 kg is released from rest and drops 195 m to the floor the collision is completely inelastic how
you hit a golf ball at a 61 degree angle and it lands 120 m away and 9 m down in a hole from its original y position
a boy of mass 483 kg is initially on a skateboard of mass 200 kg moving at a speed of 103 ms the boy falls off the
a velocity selector is tuned to let charges with a speed of 325 ms pass through if the strength of the magnetic field
under some circumstances a star can collapse into an extremely dense object made mostly of neutrons and called a
a football is kicked at ground level with a speed of 18ms at angle of 35 to the horizontal how much later does it hit
a uniform conducting rod of length 28 cm has a potential difference across its ends equal to 13 mv millivolts what is
the polonium isotope 210po an alpha emitter has a half-life of 13838 days you happen to have a 14 g cube of 210po so
a ball is thrown horizontally from the roof of a building 45m tall and lands 24m from the base what was the balls
an electron in a hydrogen atom is orbiting the nucleus at 22x106 ms if we treat the electron as a classical current
a circular-motion addict of mass 95 kg rides a ferris wheel around in a vertical circle of radius 10 m at a constant
a sprinter of mass 693 kg runs at a constant speed of 109 ms in a straight line find the extra force the sprinter must
two blocks each of mass m 21 kg are pushed along the horizontal surface of a table by a horizontal force p of
suppose the coefficient of static friction between the road and the tires on a car is 060 and the car has no negative
a 4 kg object attached to a horizontal string moves with constant speed in a circle on a frictionless horizontal
a low friction cart of mass m traveling at speed v collides perfectly elastically with a cart of triple the mass
a 300 kg block slides from rest from the bottom of an inclined plane tilted up at 25 degrees this acceleration is due
some object moves 1000 m at an angle of 36deg west of south during this motion a 920 n force acts on the same object