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a rectangular sample of a metal is 38 cm wide and 600 microm thick when it carries a 30 acurrent and is placed in a 08
a wagon is rolling forward on level ground friction is negligiblethe person sitting in the wagon is holding a rock the
four identical charges 20 muc eachare brought from infinity and fixed to a straight line the chargesare located 040 m
the 600-n ball shown is suspended on a string ab and rests againsta frictionless vertical wall the string makes an
a 25-kg cart is rolling along a frictionless horizontaltrack towards a 15-kg cart that is held initially at rest
a moving particle encounters an external electric field that decreases its kinetic energy from 9520 ev to 7060 ev as
a hydraulic is designed with a line that is 62 ft long if the applied pressure at one end of the line is 6 pa what is
suppose you are given two bars one is anelectric dipole and the other is a magnetic dipole can you think of some simple
a 9kg mass is connected by a a string over a frictionless pulley to a 5kg block sliding on the tablethe coefficient of
if the centripetal force applied to a body moving in a uniformcircular motion is suddenly turned off describe the
a 675kg bucket hangs at the end of a rope you pull horizontallyand raise the bucket 4m over a frictionless pulleya how
a 100-w lightbulb has a resistance of about 12omega when cold 12 c and 140omega when on hotnbsp estimate the
a geosynchronous orbit is one in which the satellite orbits above the equator and has an orbital period of 24 hours so
a 2000 kg car moving east at 100 mscollides with a 3000 kg car moving north the cars stick togetherand move as a unit
a student throws a set of keys vertically upward to her sorority sister who is innbsp a window 400m above the second
consider a mass spectrometer used to separate the two is otopes of uranium 238u3 and 235u3 assume the ions enter the
why does air circulate from a point with less pressure towards one with more pressure we have a tunnel and on one side
a block of mass m slides at velocity vo across ahorizontal frictionless surface toward a large curved movable rampof
two long straight wires are parallel and 78 cm apart theyare to carry equal currents such that the magnetic field at a
a 10-kg body is force against a horizontal elastic spring compressing it an amount of 05 meter when the body was
the maximum compressional stress that a bone can withstand is 16 x108 nm 2 before it breaks a thighbone femur which is
a barbers chair with a person in it weighs 2100n the output plunger of a hydraulic system begins to lift the chair when
a meat baster consists of a squeeze bulb attached to a plastic tube when the bulb is squeezed and released with the
a cylindrical storage tank has a radius of 122m when filled to a height of 371m it holds 14 300 kg of a liquid
a simple pendulum is made from a 051 mlong string and a small ball attached to its free end the ball ispulled to one