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a 048-kg piece of wood floats in water but is found to sink in alcohol sg 079 in which it has an apparent mass of 0047
the 14th stage of the 2002 tour de france was 221 km in length the last 38 km is a tough roughly steady climb up mount
a metal ball with a mass of 381middot10-6kg and a charge of 521 mc has a kinetic energy of 477middot108j it is
two snowy peaks are 996 m and 896 m above the valley between them a ski run extends down from the top of the higher
a 1170 kg block of granite is pulled up an incline with l 400 m at a constant speed of 176 ms by a steam winch the
the position of a 12kg mass is given by x 2t3 - 3t2m where t is in secondsa what is the net horizontal force on the
a new record for running the stairs of the empire state building was set on february 3 2003 the 86 flights with a total
a 10- kg mass is attached to a string wrapped around a shaft of negligible mass and having a 50- cm radius a
a solid disk rotates in the horizontal plane at an angular velocity of 00693 rads with respect to an axis perpendicular
it takes the elevator in a skyscraper 41s to reach its cruising speed of 13ms a 68kg passenger gets aboard on the
the escape speed from a distant planet is 43 kms if the acceleration of gravity on the planet surface is 110 ms2 what
an object is thrown vertically upward with an initial velocity of 147msa how long does it take for the object to be 98m
a parallel-plate capacitor made of circular plates of radius 85 cm separated by 020 cm is charged to a potential
a swimmer capable of swimming at a speed of 142 ms in still water ie the swimmer can swim with a speed of 142 ms
what is the change in gravitational potential energy of a 200- kg mass that is carried from the surface of the earth to
an 817-f capacitor is fully charged by a 325-v battery which is then disconnected next the capacitor is connected to an
a construction worker with a weight of 820n stands on a roof that is sloped at 16 degreeswhat is the magnitude of the
two circular metal plates of radius 017 m and thickness 85 mm are used in a parallel plate capacitor a gap of 17 mm is
two concentric metal spheres are found to have a potential difference of 8460 v when a charge of 3186middot10-8 c is
a golfer hits a shot to a green that is elevated 300 m above the point where the ball is struck the ball leaves the
a uranium nucleus with a charge of 92e can spontaneously decay into a thorium nucleus of charge 90e and an alpha
i have a cube of charge 1 cm on a side the total charge is 1 coulomb using gausss law calculate the electric field due
the two masses in the atwoods machine shown in the figure have an initial speed of 025 and is moving upward how high
a communications satellite with a mass of 430 is in a circular orbit about the earth the radius of the orbit is
471 mol of neon gas is initially at a pressure of 423 atm and a temperature of 282oci if the gas is cooled at constant