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an extreme skier starting from rest coasts down a mountain that makes an angle of 343 deg with the horizontal the
a stone used to grind wheat into flour is turned through 12 revolutions by a constant force of 216 n applied to the rim
a bowling ball made for a child has two thirds the radius of an adult bowling ball they are made of the same material
at a recent rock concert a db meterregistered110db when placed200m in front of a loudspeaker on the stagea what was the
the equation for the displacement in meters of an object moving in shm is xt 150 cos 420t where t is in secondsa what
a force acts along the displacement of the asteroid and slows it down the asteroid has a mass of 37 times 104 kg and
ions a and b are separated by 12 e -10m ion a has a charge of -2e the electrostatic force between the two ions has a
an object is moving in simple harmonic motion with amplitude 028 m and total energy 25 j by some means its amplitude is
a 28 kg solid sphere radius 020 m is released from rest at the top of a ramp and allowed to roll without slipping the
suppose that a 100 cm3 box in the shape of a cube is perfectly evacuated except for a single particle of mass 105 10-3
what is the potential difference between the terminals of a battery that can impart 68times1019 rm j to each electron
a container of cross-sectional area 107 cm2 contains liquid of density 235 gcm3 to a height of 690 cm above a small
a a man weighing 720 n lies on a bed of nails find the average pressure exerted by a nail on his skin if there are 1210
a man doing a slow push-up is approximately in static equilibrium his body is horizontal with his weight of 763 n
three resistors are connected in series across a 11-v power supply if the potential drops across resistors 1 and 2 are
a car with a total mass of 157 103 kg has wheels of radius 325 cm and moment of inertia 0875 kg middot m2a find the
the average distance of the planet mercury from the sun is 039 times the average distance of the earth from the sun how
a bicyclist is traveling at a speed of 20 ms as he approaches the bottom of hill he decides to coast up the hill and
a 105 kg mass is attached to a light cord that is wrapped around a pulley of radius 265 cm which turns with negligible
a merry-go-round starts from rest and accelerates uniformly over 270 s to a final angular velocity of 775 revmina find
an ideal gas is confined to a container with constant volume the number of moles is constant by what factor will the
a boy of mass 547 kg is initially on a skateboard of mass 200 kg moving at a speed of 103 ms the boy falls off the
a compute the impulse necessary to bring to rest the 530 kg driver of an automobile initially moving at 290 msb find
calculate the wavelength of light emitted by a hydrogen atom when an electron makes a transition from n8 to n2
an electron in the hydrogen atom jumps from a level in which the energy is 189 ev higher than the energy of the final