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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
a colonial gunner sets up his 225-kg cannon at the edge of the flat top of a high tower it shoots a 45-kg cannonball
a 0105-kg hockey puck moving at 24 ms is caught and held by a 75-kg goalie at rest with what speed does the goalie
a superball of mass m and a marble of mass m are dropped from a height h with the marble just on top of the superball a
1 how long does it take for a particle to travel 110 m if it begins from rest and accelerates at 10 ms22 how far dose
two students together exert a force of 825 n in pushing a car 35 m1 how much work do they do on the car2 if the force
a 500-g bullet is fired with a velocity of 1000 ms toward a 1000-kg stationary solid block resting on a frictionless
a car moving at 10 ms crashes into a barrier and stops in 0050 s there is a 20-kg child in the car suppose that the
suppose the diameter of a basketball is d 9inch the size of a basketball rim d 18 inches a player is making a three
a force of 400 n is required to pull a 100-kg wooden block at a constant velocity across a smooth glass surface on
the moon is 15 x 108 km from the sunrsquos center and 39 x 105 km from earthrsquos center if the masses of the moon
the sun is considered to be a satellite of our galaxy the milky way the sun revolves around the center of the galaxy
discover the speeds with which mercury and saturn move around the sun does it make sense that mercury is named after a