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starting from rest a 12 cm diameter compact disk takes 24 s to reach its operating angular velocity of 2030 rpm assume
the convex lens of a copy machine has a focal length of 250cm a letter to be copied is placed 400cm from the lens how
neptune circles the sun at a distance of 4501012 once every 164 years saturn circles the sun at a distance of 1431012m
explain qualitatively the following phenomenaa at a certain momentum the cross sections for p neutron spn and p- proton
a planet has two small satellites in circular orbits around the planet the first satellite has a period 12 hours and an
a sample consisting of 15 mol of perfect gas molecules with cpm 208jkmol is initally at 230kpa and 315 k it undergoes
a 45 kg trunk is pushed 78 m at constant speed up a 30deg incline by a constant horizontal force the coefficient of
a sample of nitrogen of mass 312g at 230 degree celsuis is allowed to expand reversibly and adiabatically from 400cm3
a skier starts from rest at the top of a hill that is inclined at 93deg with respect to the horizontal the hillside is
if a 100 kilogram person was standing in the elevator and it accelerated downward at 3 ms2 a write the equation for the
a 123-kg monkey is hanging by one arm from a branch and swinging on a vertical circle as an approximation assume a
two block each of 30 kg are held by strings the upper string exerts a force f of 100 newtonswhat is the force exerted
a horizontal wire of length 30 m carries a current of 60 a and is oriented so that the current direction is 50deg s of
a proton is released such that it has an initial speed of 40 105 ms from left to right across the page a magnetic
suppose there is significant air resistance in addition to the spring force acting on the mass as it oscillates up and
suppose that a cart is given a push up the ramp and released it moves up reverses direction and comes back down again
a box starts out at the top of a frictionless ramp then slides down the ramp has a heighth3meters and a slope
a particle of mass 441x10-13 kg carries a charge of 397x10-11c if it moves perpendicular to a magnetic field of 0331 t
a 100-g bullet traveling horizontally at 755 ms strikes a stationary target and stops after penetrating 145 cm into the
a copper wire of length 330 cm is in a magnetic field of 070 tif it has a mass of 140 g what is the minimum current in
the distance between two telephone poles is d 535 m when a 110-kg bird lands on the telephone wire midway between the
crossfire was a popular board game in which players attempted to propel a puck forward towards their opponets side by
a single force acts on a 80 kg particle-like object in such a way that the position of the object as a function of time
the lead female character in the movie diamonds are forever is standing at the edge of an offshore oil rig as she fires
if a photon is a wave and is moving along the x-axis at the speed of light isnt any specific part of the wave moving