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a flywheel turns through 28 rev as it slows from an angular speed of 33 rads to a stopa assuming a constant angular
what work is done when a 2 c is moved through an electric potential difference of 2 v calculate to two decimal
two workers push horizontally in the same direction on a 250 kg wooden crate that is on a wooden floor what total force
a sledge loaded with bricks has a total mass of 183 kg and is pulled at constant speed by a rope inclined at 197deg
a sample containing beryllium atomic mass 9 u aluminum 27 u and an unknown element is placed in a mass spectrometer the
a 462 kg girl is standing on a 132 kg plank the plank originally at rest is free to slide on a frozen lake which is a
a pitcher claims he can throw a 0145-kg baseball with as much momentum as a 35-g bullet moving with a speed of 125 x
a 039 t magnetic field is perpendicular to a circular loop of wire with 55 turns and a radius of 13 cm if the magnetic
a woman throws a ball at a vertical wall d 36 m away the ball is h 18 m above ground when it leaves the womans hand
a particle initially located at the origin has an acceleration of 400 ms2 and an initial velocity of i 600 msa find
a conducting sphere 10cm in diameter is first charged and left isolated at a potential of 100volts the sphere is
a certain peculiar spring is found not to conform to hookes law the force it exerts when stretched a distance x is
a small block of mass m slides along a frictionless loop-the-loop trackif it starts from rest at point p what is the
a 20 kg block is dropped from a height of 040 meter onto a spring of force constant k 1960 nm find the maximum
a satellite rocket weighing 200000 n acquires a speed of 2000 ms in 1 minute after launchingwhat is its kinetic energy
a 30 gram bullet initially traveling at 500 ms penetrates 12 cm into a wooden block use work energy theorem and find
a mass m 69 kg hangs on the end of a massless rope l 209 m long the pendulum is held horizontal and released from
what is the smallest radius of a circle at which a bicyclist can travel if his speed is 9 ms and the coefficient of
a massless pulley is pulled upward with a force 140 n a rope passes over the pulley with a mass m1 5 kg at one end
a load of bricks with mass 160 hangs from one end of a rope that passes over a small frictionless pulley a
a block slides down an inclined plane of slope angle with a constant velocity it is then projected up the same plane
a loudspeaker of mass 250 is suspended a distance of 220 below the ceiling by two cables that make equal angles with
a railroad flatcar is loaded with crates having a coefficient of static friction 025 with the floor if the train is
a crate mass 60 kg is pulled along a horizontal surface with a coefficient of kinetic friction 0 2 by a rope which
a bird stands on a dc electric transmission line carrying 2500 a fig 18-34 the line has 27 10-5 resistance per meter