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two small charged balls have a repulsive force of 018n when they are separated by a distance of 085m the balls are
a tortoise can run with a speed of 117 cms and a hare can run 181 times as fast in a race they both start at the same
water has a mass per mole of 180 gmol and each water molecule h2o has 10 electronsa how many electrons are there in 551
a ball rolling down an incline travels 60m in the first 025 seconds and 24m in the first 050 seconds what is the
a horizontal beam of positrons initially moving at 33 107 ms is deflected vertically by the vertical electric field
a steel ball is dropped from a buildings roof and passes a window taking 013 s to fall from the top to the bottom of
a satellite is spinning at 001 revs the moment of inertia of the satellite about the spin axis is 2000 kg m2 paired
a massless spring hangs from the ceiling with a small object attached to its lower end the object is initially held at
a bicycle and rider combined mass 94 kg approach a 10-m high hill going 89 msa what is their kinetic energy as they
an electron is suspended at a distance of 148 cm above a uniform line of charge what is the linear charge density of
a submarine dives to a 50-m depth in the oceana what is the gauge pressure at this depthb what is the force acting on a
a small statue is recovered at an archeological dig its mass is measured to be 386 kg and its volume is 002 m3a what is
two people on ice skates are at rest and stand facing each other they then push each other away the mass of the person
three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 24 cm
the leader of a bicycle race is traveling with a constant velocity of 118 ms and is 920 m ahead of the second-place
had some difficulty getting the right answer for this question wondering if someone could help me out thanks some of
a liquid with a density of 55 lbscubic ft is traveling through a pipe at a velocity of 115 ftsec and its static
a steel section of the alaskan pipeline had a length of 65 m and a temperature of 18 degc when it was installed what is
a balloon contains 10 lbs of helium at a temperature of 70 f if the volume of the balloon is 300 ft3 what is the
in reaching her destination a backpacker walks with an average velocity of 105 ms due west this average velocity
julie drives 100 mi to grandmothers house on the way to grandmothers julie drives half the distance at 440mph and half
a diffraction grating with 610 lines per mm is illuminated with light of wavelength 520 nm a very wide viewing screen
a severe thunderstorm dumped 24 in of rain in 30 min on a town of area 42 km2 what mass of water in kg fell on the town
a small glass bead has been charged to 600 a metal ball bearing 270 above the bead feels a 150times102 downward
a student throws a set of keys 44m up to friend in window the friend catches the keys 17s later what is the intial