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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
a brass rod with a length of 100 cm is placed end to end with an aluminum rod with a length of 300 cm and this system
an object suspended from a spring vibrates with simple harmonic motiona at an instant when the displacement of the
a ladder 205 m long weighing 229 n initially lies flat on the ground the ladder is raised to a vertical position
at a recent rock concert a db meter registered 110 db when placed 200 m in front of a loudspeaker on the stagea what
two submarines are underwater and approaching each other head-on sub a has a speed of 17 ms and sub b has a speed of 8
the driver of a 1750 kg car initially traveling at 101 ms applies the brakes bringing the car to rest in a distance of
a 12 kg coffee cup is accelerated at 30 ms2 in the direction shown over a frictionless horizontal surface the
a 30 kg child on a sled slides down a frictionless slope angled at 15 degrees with respect to the horizontal a wind
a 0159 kg toy is undergoing shm on the end of a horizontal spring with force constant 310 nm when the object is
a vertical scale on a spring balance reads from 0 to 235 n the scale has a length of 105cm from the 0 to 235 n reading
a uniform 240 n ladder rests against a perfectly smooth wall making a 400 angle with the walla find the normal forces
a block of mass m 320 kg is pushed a distance d 640 m along a frictionless horizontal table by a constant applied
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