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a telephone cord is 400m long the cord has a mass of 0200kg a transverse pulse is produced by plucking one end of the
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a 0267 t magnetic eld in a mass spectrometer causes an isotope of sodium to move in a circular path with a radius of
an object of mass 298 kg moving with an initial velocity of 497 ms collides with and sticks to an object of mass 254 kg
a model rocket engine has an average thrust of 526 n it has an initial mass of 259 g which includes fuel mass of 130 g
the giant hornet vespa mandarinia japonica preys on japanese bees however if one of the hornets attempts to invade a
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a 68-rm kg person rides in a 35-rm kg cart moving at 11rm ms at the top of a hill that is in the shape of an arc of a
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which of the following statements is true for an elastic collisiona both momentum and kinetic energy are conservedb
a highway curve with radius 850 is to be banked so that a car traveling 520 will not skid sideways even in the absence