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an astronaut is being tested in a centrifuge the centrifuge has a radius of 10 m and in starting rotates according to
a long rigid conductor lying along the x axis carries a current of 40 a in the negative direction a magnetic field b is
three identical freight cars are sitting on the tracks each separated by a small distance a fourth car is coasting with
a long solenoid has 150 turnscm and carries current i an electron moves within the solenoid in a circle of radius 240
a hamiltonian of one degree of freedom has the form with aband k areconstanthp22alpha-bqpexp-alpha tba2q2exp-alpha
an electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly
a 1500-kg satellite initially moving at 10 ms to the left burns its rocket engine for 40 seconds after the burn the
an object is placed directly between a large planet and a star find the distance from the planet for which the net
an aluminum can is filled to the brim with a liquid the can and the liquid are heated so their temperatures change by
neutron stars are extremely dense objects that are formed from the remnants of supernova explosions many rotate very
two loudspeakers are located 315 m apart on an outdoor stage a listener is 163 m from one and 174 m from the other
this is a monochromatic light two thin slits are separated by 0150 mm which is placed 23 meters away you observe the
during an adiabatic expansion the temperature of 0430 moles of argon ar drops from 54 c to 15 c the argon may be
a 3-kg object initially traveling at 6 ms in the negative x direction collides and sticks to a 4-kg object traveling at
a refrigerator has a coefficient of performance of 215 each cycle it absorbs 330times104 of heat from the cold
a pendulum consists of a compact 030 kg bob attached to a string of length 190 m a block of mass m rests on a
a heavy wooden block rests on a flat table and a high-speed bullet is fired horizontally into the block the bullet
a photon of red light wavelength 710 nm and a ping-pong ball mass 260 x 10-3 kg have the same momentum at what speed
a ceiling fan has five blades each with a mass of 090 kg and a length of 066 m the fan is operating in its low setting
an electron collides elastically with a hydrogen atom that is initially at rest assume all the motion occurs along a
a jewel smith wishing to buff a finished piece of jewelry attaches a buffing disk to his drill the radius of the disk
a spherical 034 kg orange 20 cm in radius is dropped from the top of a building of height 33 m after striking the
a 0052 kg mass oscillates on a spring with a frequency of 82 hz and an amplitude of 0025 mawhat is the spring
a certain superconducting magnet in the form of a solenoid of length 070 m can generate a magnetic field of 100 t in