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two round rods one steel and the other copper are joined end to end each rod is 0760 long and 135 in diameter the
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a whistle of frequency 520 hz moves in a circle of radius 800 cm at an angular speed of 120 rads what are the lowest
a 50 kg rock climber accidentally falls from the side of a rock and freefalls until she is stopped by her 9 m saftey
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in the path shown below the locations of a car driving around a track are shown at equal time intervals where t 20 s
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consider the following figure the four charges are at the corners of a square take q 108 microc and q 230 microca in
as you stand by a railroad track a train passes with its whistle blowing as it passes you hear a frequency shift
1 a 500 kg block is pulled from rest by a force of 10000 n at an angle of 370deg across a horizontal rough surface over
physics ii lenses two converging lenses each has focal length of 20 cm they are separated by a distance of 70 cm an
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a steam catapult launches a jet aircraft from the aircraft carrier john c stennis giving it a speed of 175 mih in 250 s
a battleship simultaneously fires two shells toward two identical enemy ships one shell hits ship a which is close by
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1 one mole of an ideal gas at 25c and 1atm undergoes the following reversibly conducted cyclea an isothermal expansion