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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
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