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let the mass of the star be 198e30 kilogram and the power be 852e27 watt the universal gravitational constant is
a helium balloon is anchored by a mass less string to the floor of a railroad car that is accelerating forward with
a child operating a radio-controlled model car on a dock accidentally steers it off the edge the cars displacement 081
two disks are rotating about the similar axis disk a has a moment of inertia of 483 kgbullm2 and an angular velocity of
a 850 kilogram car pushes a 2400 kilogram truck that has a dead battery when the driver steps on the accelerator the
a satellite of mass 190 kilogram is launched from a site on earths equator into an orbit at 185 kilometer above the
a 751 kilogram satellite is in a circular orbit about the earth at a height above the earth equal to the earths mean
alpha particles of kinetic energy k are scattered either from a gold foil or a silver foil of identical thickness find
an 870 kilogram block slides with an initial speed of 156 ms up a ramp inclined at an angle of 284o with the horizontal
to make a bounce pass a player throws a 060 kilogram basketball toward the floor the ball hits the floor with a speed
roberto reaches out of a window and tosses a rock straight up with a speed of 193 ms the ball is 306 meter above the
a 500 kilogram box is at rest on a horizontal floor where microk 030a a force of 300 newton is needed to break the box
an automobile of mass 1500 kilogram moving at 250 ms collides with a truck of mass 4500 kilogram at rest the bumpers of
a horizontal beam is attached to a vertical wall by a frictionless hinge and supported from below at an angle 45o by a
the instantaneous potential difference vab across an electric light bulb has a maximum value of 170 volt and a minimum
an automobile starter motor is an electric motor used to start the gasoline engine to operate the starter motor the
a block of mass m rests on a plane inclined at an angle theta with the horizontal a spring with force constant k is
a piece of nichrome wire has a radius of 76 x 10-3 meter it is used in a laboratory to make a heater that dissipates
a computer disk drive is turned on starting from rest and has constant angular accelerationa if it took 0680 second for
a 61 kilogram person is in a head-on collision the cars speed at impact is 16 msa find the net force on the person if
a car weighing 9810 newton travels at 60 kmh moves into a circular driveway and slows down to a stop in 5 secondsa
a tuning fork generates sound waves with a frequency of 246 hertz the waves travel in opposite directions along a
a car traveling at 47 kmh hits a bridge abutment a passenger in the car moves forward a distance of 75 centimeter with
a 0150 kilogram particle moves along annbspxnbspaxis according to xt -1300 200tnbsp 450t2nbsp- 300t3 withnbspxnbspin
in the laboratory frame two events are separated by a time interval of 80 second and a spatial distance of 20 x 109