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a stroboscope is a light that flashes on and off at a constantrage it can be used to illuminate a rotating object and
the coefficient of kinetic friction between a refrigerator mass 100kg and the floor is 020 and the coefficient of
a typical set of stairs is angled at 38 degrees you climb aset of stairs at a speed of 36 ms1 how much height will you
a baseball pitcher throws a baseball horizontally at a linearspeed of 425 ms before being caught the baseball travelsa
a parallel-plate capacitor in air has a plate separation of 150 cmand a plate area of 250cm2 the plates arecharged to a
the text of the question is as follows anengine flywheel is rotating at 250 rads per second when theengine is turned
an object 37kg is lifted 46 m above the ground and thendropped to the ground what is the objects pe at the top ofthe
a digital audio compact disc carries data along a continuousspiral track from the inner circumference of the disc to
an electron between two charged horizontal parallel platesexperiences a force of 868 10-15n -ynbspnbsp a what ise
particle a andparticle b are held together with a compressed springbetween them when they are released the spring
a circular curve of highway is designed for traffic moving at60kmha if the radius of the curve is 150m what is the
a 200 kg block is placed against a spring on a frictionless300 degree incline the spring whose spring constant is196ncm
a geiger counter registers a count rate of4000 counts per minute from sample of a radiosotope twelveminutes later the
an object is released from rest on a planet that has no atmospherenbsp the object falls freely for 3m in the first
a playground merry-go-round has radius 240 m and a moment ofinertia of 2100 kgm2 about a vertical axle through its
machmer hall is 400 m north and 180 m west of witless astudent is late for her appointment in machmer and wants to
a flywheelwith a diameter of 100 m is rotatingat an angular speed of 240 revmina what is the angular speed of the
at t0 a ball is thrown upward from the groundnbsp two seconds later the ball hits the groundnbsp assume g10ms2nbsp what
a thin rod of length l and negligible mass can pivot about oneend to rotate in a vertical circle a heavy ball of mass m
in february 1955 aparatrooper fell 370 m from anairplane without being able to open his chute but happened to landin
a 50kg trunk is pushed 60 m at a constant speed up a 30degree incline by a constant horizontal force thecoefficient of
a remote-controlled cars wheel accelerates at 221rads2 if the wheel begins with an angular speed of 10rads what is the
a catapult launches a rock at a 46deg angle with respect to the horizontal find the maximum height attained if the
an internal explosion breaks an object initially at restinto two pieces one of which has 15 times the mass of the other