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an apple crate with a weight of 375 n accelerates along a frictionless surface as the crate is pulled with a force of
when the net force that acts on a hocey puck is 14 n the puckaccelerates at a rate of 480 ms2 determine the mass of the
a 169 g cube of ice at0c is dropped into 29 kg of water that wasoriginally at 79cwhat is the final temperature of the
two forces act on a14 kg object the first force has a magnitude of 70 n and is directed 28 north of east the second
a spring-loaded pellet gun is designed to fire 240 g projectiles horizontally at a speed of474 msa if the spring is
in 1898 pierre amp marie curie isolated about 10mg of radium-226 from eight tons of uranium ore if this sample had been
a transverse wave of wavelenght 050m travels along a rope if the frequency of the wave is 400hz what is the speed of
the speed of the fastest pitched baseball was 45 ms and the balls mass was 145g what was the magnitude of the momentum
you land on an unkown planet and start doing some physics experiments you throw a 524kg rock upward at 130 ms and
a steel wire of length l20 m with cross section a05cm2 is supported from one end by the ceiling and on theother end is
a uniform diving board is 500 meters in length and weighs 100 newtons it is supported by two posts separated by 150m
two particles of mass m and 2m are connected by massless rod oflength l what is moment of inertia of the rod if the
a helicopter stays aloft by pushing large quantities of air downward every second what mass of air must be pushed
an object is attached to the lower end of a 100-coil springthat is hanging from the ceiling the spring stretches by
a 0150kg toy is undergoing shm on the end of a horizontalspring with a force constant 300 nm when the object is
an archer pulls her bowstring back 0400 mby exerting a force that increases uniformly from zero to260 na what is the
an explosion occurs near the surface of a lake a diver atsome distance hears the explosion and immediately surfaces he
a mass of 05 kg hangs from a spring with a spring constant 50nm the mass is pulled downward to a displacement of 20 cm
a sample of an unknown material weighs 260n in air and 155 n when immersed inalcohol of specific gravity 0700a what is
four equal masses m05kg are placed on the corners of a square ofnegligible mass whose sides are 04m long the system
an object is placed in front of a converging lens in such aposition that the lens f 170cm creates a real image located
a goodyear blimp typically contains 5500m3 of helium he at an absolute pressure of 11multiplied by 105 pa
an object is solid throughout when the object is completelysubmerged in ethyl alcohol its apparent weight is 148 n when
a coin is located 180 cm to the left of aconverging lens f 160 cm a second identical lens isplaced to the right of the
over several cycles a refrigerator does 151x104 j of work on therefrigerant the refrigerant in turn removes 755x104 j