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a golf ball with mass 0046 kg rests on a tee it is struck by a golf club with an effective mass of 0220 kg and a speed
meganrsquos mass is 28 kilogram she climbs the 48- m ladder of a slide and reaches a velocity of 32 ms at the bottom of
a 20-kg rock initially at rest loses 407 j of potential energy while falling to the ground1 compute the kinetic energy
a 300-kg gun is resting on a frictionless surface the gun fires a 500-g bullet with a muzzle velocity of 3100 ms1
a 200 x 103-kg car has a speed of 120 ms the car then hits a tree the tree doesnrsquot move and the car comes to rest1
pam wearing a rocket pack stands on frictionless ice she has a mass of 45 kg the rocket supplies a constant force for
visible light passes through a diffraction grating that has 900 slits per centimetre and the interference pattern is
a steel cable utilized in a suspended roof system has an allowable tensile strength 150 ski it should carry a load of
antwan raised a 120-n physics book from a table 75 cm above the floor to a shelf 215 m above the floor what was the
tarzan mass 85 kg swings down on the end of a 20-m vine from a tree limb 40 m above the ground sketch the situation1
in the 1950s an experimental train that had a mass of 250 x 104 kg was powered across a level track by a jet engine
ellen and angela each have a mass of 45 kg and they are moving together with a speed of 100 ms1 what is their combined
sau-lan has a mass of 52 kg she rides the up escalator at ocean park in hong kong this is the worldrsquos longest
a particle moves in an elliptical path given by the equation r bcosomegati 2bsinomegatj discover the angle between
a skier starts from rest at the top of a 45-m hill skis down a 30deg incline into a valley and continues up a 40-m-high
bullets canrsquot penetrate supermanrsquos chest assume that superman with mass 104 kg while not moving is struck by a
a motor having an efficiency of 88 operates a crane having an efficiency of 42 with what constant speed does the crane
sally expends 11 400 j of energy to drag a wooden crate 250 m across a floor with a constant speed the rope makes an
a moverrsquos dolly is used to transport a refrigerator up a ramp into a house the refrigerator has a mass of 115 kg
a 120-m long conveyor belt inclined at 300deg is utilized to transport bundles of newspapers from the mailroom up to
rico slides a 60-kilogram crate up an inclined ramp 20-m long onto a platform 10 m above floor level a 400-n force
you slide a crate up a ramp at an angle of 300deg by exerting a 225-n force parallel to the ramp the crate moves at
a box that weighs 575 n is lifted a distance of 200 m straight up by a cable attached to a motor the job is done in 100
an electric motor develops 65 kilowatts of power as it lifts a loaded elevator 175 m in 35 s how much force does the
a rock climber wears a 75-kg knapsack while scaling a cliff after 30 minute the climber is 82 m above the starting