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a gas is allowed to expand at constant pressure until it reaches its final volume it is then cooled at constant volume
an astronaut with a steady heartbeat of 57 beats per minute travels at a constant speed of 091c relative to earth
a spherical balloon is made from a material whose mass is 300 kg the thickness of the material is negligible compared
what is the pressure at a depth of 5000 in the ocean what is the fractional volume change of seawater at this pressure
a block of wood mblock 52 kg rests on a horizontal surface for which the coefficient of kinetic friction is 032 a
after emptying her lungs a person inhales 424 l of air at 0 degc and holds her breath how much does the volume of the
a 32 m long pendulum is released from rest when the support string is at an angle of 23deg with the vertical what is
a bomb at rest at the origin of an xy-coordinate system explodes into three pieces just after the explosion one piece
a 800 box contains helium at a pressure of 150and a temperature of 110 it is placed in thermal contact with a 180 box
consider a heat engine that operates between thermal reservoirs at 450 k and 232 k suppose the engine does 4500 j of
an aluminum block slides along a horizontal surface the block has an initial speed of 94 ms and an initial temperature
a reversible heat engine operates between thermal reservoirs at 810 k and 180 k if 8280 j are extracted from the hot
a system consisting of an ideal gas at the constant pressure of 108 kpa gains 923 j of heat calculate the change in
a billiard ball of mass m 025 kg strikes the cushion of a billiard table at 1 58deg and a speed v1 30 ms it bounces
in a newtons ring experiment a plano- convex glass n 142 lens having diame- ter 118 cm is placed on a flat plate as in
a 106 watt motor is used to lift a 114 kg container to a height of 6 m how much time does it take to lift the container
a worker on top of a radar tower 218 ft high drops a wrench off the tower what is the speed of the wrench when it hits
a metal ball with a mass of 2 g a charge of 1 uc and a speed of 42 ms enters a magnetic field of 16 t what is the
a soldier has a huge contraption that notches a large 1 kg arrow it looks more like a lance in a massive bow and uses a
an electron has a velocity of 600 x 10 6 ms perpendicular to a magnetic field of 31 t what force does the electron
an ambulance with a siren emitting a whine at 1530 hz overtakes and passes a cyclist pedaling a bike at 255 ms after
a transverse wave on a string is described by the following wave function y 0105 sin x12 5t where x and y are in
you have a ball on a wire that is twirled in a circular orbit with a radius of 37 m and the centripetal force acting on
as a space craft approaches a planet the rocket engines on it are fired to slow it down so it will go into orbit around
a laser produces an average power of 55 w in a light beam 10 mm in diameter find the peak electric field of the laser