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earth has a net charge that produces an electric field of approximately 150 nc downward at its surfacea find the
assume that the amount of heat removed when 35 kilogram of water freezes at 00degc were removed from ammonia at its
a lab centrifuge with radius 15 centimeter turns at 85 revs find what should be its angular acceleration for a point at
a copper wire has a diameter of 1692 millimeter find what magnitude current flows when the drift velocity is 140
a block starts from rest at the top of a 30o inclined frictionless plane and after travelling 1 meter encounters a
a block is sitting on a ramp that is 22o above the horizontal the mass of the block is 8 kilogram find the static
a 5 kilograms box is pushed across a horizontal floor by a 20 newton force that is angled 30o below the horizontal
in a certain rlc circuit the rms current is 682 amp the rms voltage is 233 volt and the current leads the voltage by
a 43 meter long plank with a weight of 164 newton is place on a dock with 14 meter of its length extended over the
an ac voltage with an amplitude of 105 volt is applied to a series combination of a 226 x 10-6 f capacitor a 106 mh
two builders carry a sheet of drywall up a ramp suppose that w 2 m l 310 m theta 23 degree and that the lead builder
in a time of t seconds a motorcycle can accelerate from rest to the speed va obtain the amount of time in terms of t
a flywheel in the shape of a solid cylinder of radius r060 meter and mass m15 kilogram can be brought to an angular
as a tennis ball is struck it departs from the racket horizontally with a speed of 278 meter per second the ball hits
assume a 45 turn coil lies in the plane of the page in a uniform magnetic field that is directed into the page the coil
a 497 newton person stands on a uniform board of weight 164 newton and length 26 meter the board is supported at each
assume a block is located on the top of an upside down semi-spherical bowl the block starts to slide without frictions
a 20e-6 c charge is initially 020 m from a fixed -50e-6 c charge and is then moved to a position 050 meter from the
a grinding wheel is a uniform cylinder with a radius of 10 meter and a mass of 07 kilograma find its moment of inertia
with the help of archimedes principle explain why the weight of an object submerged in a fluid lighter than its weight
a race driver has made a pit stop to refuel after refueling he starts from rest and leaves the pit area with an
determine the work done by a machine that lifts a 500 newton crate through a height of 20
as a sailboat sails 525 meter due north a breeze exerts a constant force f with arrow1 on the boats sails this force is
a 200 kilograms cart is pushed up an incline at constant velocity find how much work does the pushing force do in
a mass m2 kilogram that has a speed of 50 meter per second passes through a metal film of thickness 0010 meter and