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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
a a luggage carousel has the form of a section of a large cone rotating about its vertical axis its metallic surface
a rope having a total mass of 04 kilogram and total length 4 meter has 06 meter of the rope hanging vertically down off
after sliding down a snow-covered hill on an inner tube ashley is coasting across a level snowfield at a constant
a convex lens of focal length 5 centimeter is used as a magnifying glass obtain at what distance from a tiny insect
when a high jumper is in a position such that his arms and legs are hanging vertically and his trunk and head are
two converging lenses each of focal length 170 centimeter are placed 408 centimeter apart and an object is located 300
a simple pendulum consists of a small object of mass 30 kilogram hanging at the end of 20 meter long light string that
a star with an initial radius of 10 x 108 meter and period of 30 days collapses suddenly to a radius of 10 x 104 ma
a luggage carousel has the form of a large cone its surface slopes at 20o with the horizontal a 30 kilogram piece of
a 40 c charge experiences a 450i newton force find the electric field at the location of the 40 c
a flat 10 m2 surface is vertical at x 20 meter and parallel to the yz-plane evaluate the flux through the surface if it