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a rectangular picture frame weighing 40 n is supported by a wire attached to its two top corners and passed over a nail
a small mass moves along the x-axis with a velocity that is given by vx bt2 where b 300 ms2 at t0 the block is
a small block with mass 00300kg slides in a vertical circle of radius 0475m on the inside of a circular track during
what is the maximum ramp angle that still allows the crate to remain at rest make sure the coefficient of friction is
the rms speed of the molecules in 14g of hydrogen gas is 1700ms 400j of work are done to compress the gas while in
an astronaut throws a ball upward on the moon at 3 50 ms if the ball experiences a downward acceleration at a rate of
a d 305 mm diameter wire carries an electric current of i 226 a when the electric field is e 504times10-2 vm along
a chime a hollow metal tube open at both ends is 05m long if the speed of sound is 330 ms what are the two lowest
a coil with 20 loops inside a magnetic field generator that is temporarily generating a field that has a rate of
a 5-kg fish swallows an absentminded 1-kg fish swimming towards it at a velocity that brings both fish to a halt
1 on air track a 2kg cart moving at 1ms to the right collides with a 1kg cart moving at 3 ms to the left after the
currents during lightning strikes can be up to 50000 amp or more we can model such a strike as a 48500 amp vertical
a jeweler uses a draw plate to stretch a wire to three times its original length find by what factor does its
a disk-shaped merry-go-round of radius 303 meter and mass 185 kilogram rotates freely with an angular speed of 0621revs
a ball is thrown straight up into the air it starts at height y 0 with velocity v0 and reaches a maximum height of h
you suspend a 1 kilogram mass from a vertical spring k40 nm that is attached to the ceiling after you release the mass
a 1 kilogram box slides down an undulating frictionless slope starting from rest at a height 150 m above the ground at
a 30 newton box is pulled upward 6 meter along the surface of a ramp that rises at 37 degree above the horizontal
find what current flows through a 250 centimeter diameter rod of pure silicon that is 220 centimeter long when 1000
the angle of incidence at a solidliquid boundary is 604acircdeg and the index of refraction of the solid is n 196a
assume you want the current through a 195 h inductor in series with a 025 icirc resistor to be reduced to 0100 percent
a 1000 kilogram car is moving at 15 kilometer per hour if a 2000 kilogram truck has 23 times the kinetic energy of the
a kid does 350 joule of work while pulling a box from the ground up to his tree house at a steady speed with a light
if the magnitude of the magnetic force on a proton is f when it is moving at 165o with respect to the field find what