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the flywheel of a motor has a mass of 300 kg and a moment of inertia of 580 kgm2 the motor develops a constant torque
a playground merry-go-round has a radius of 440 m and a moment of inertia of 255 kgm2 and turns with negligible
a hollow spherical shell with mass 200 kg rolls without slipping down a 380 degree slopea find the acceleration of the
a golfer tees off from the top of a rise giving the golf ball an initial velocity of 43 ms at an angle of 30o above the
a 240-kg object has a velocity 560 - 120 ms note from the definition of the dot product v2 middot a what is its
a steel beam is placed vertically in the basement of a building to keep the floor above from sagging the load on the
on a horizontal frictionless table an open-topped 550kg box is attached to an ideal horizontal spring having force
a a 108 kg mass is at the center of a uniform spherical shell of mass 105 1020 kg and radius 111 106 m find the
two very large parallel plates are oppositesly and uniformly charged if the field between the plates is 17 x 106 nca
if michaela needs to wear reading glasses with refractive power of 30 d what is her uncorrected near point neglect the
a uniform ladder 658 m long weighing 460 n rests with one end on the ground and the other end against a perfectly
two people carry a heavy electric motor by placing it on a light board 155 m long one person lifts at one end with a
a large turntable rotates about a fixed vertical axis making one revolution in 500 s the moment of inertia of the
a 25 kg swings on a playground swing if the swing hangs down 3 m from the top bar and the child swings out 20 degrees
the work function of a particular substance is 415 times 10-19 j what is the photoelectric cutoff wavelength for this
a light ray is incident on the outer surface of the crystalline at an angle of 425deg with the normal find the angle
a cylinder contains 225 mol of helium gas at 210degc assume that the helium behaves like an ideal gasa find the total
the temperature of 200 moles of argon gas is lowered from 280 x 102 k to 190 x 102 ka find the change in the internal
what is the radius of a hydrogen-filled balloon that would carry a load of 3700 n in addition to the weight of the
a styrofoam box has a surface area of 079 m2 and a wall thickness of 20 cm the temperature of the inner surface is
a bar of lead bar a is in thermal contact with a bar of silver bar b of the same length and area one end of the
a guitar string is vibrating in its fundamental mode with nodes at each end the length of the segment of the string
the surface pressure on venus is 9200 atm and the acceleration due to gravity there is 0894 g in a future exploratory
as you bounce a tennis ball of mass 510 10-2 kg off a wall its velocity changes from vx 108 ms to vx -79 ms find the
a find the linear momentum and kinetic energy of a bullet of mass 460 10-2 kg moving at a speed of 320 mslinear