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a 82 fisherman jumps from a dock into a 124 rowboat at rest on thewest side of the dock if the velocity of the
a spherical weather balloon os filled with hydrogen until itsradius is 3m total mass including instruments is 15kga
to recharge a 12 v battery a battery charger must move 36 x 105 c of charge from the negative terminal to the positive
a vertical spring k 305nm vibrates with amplitude of 28cm when26kg hangs from it the mass passes through the
an alpha particle a helium nucleus is traveling along thepositive x-axis at 1175 ms when it enters a cylindrical tube
power lines have a limit on the maximum size of the electric fieldthey produce in most states a maximum of 5knc at
if the breakers at a beach are separated by 40 m and hit shore with a frequency of024 hz with what speed are they
a boy with a mass of 45 kg is hangingfrom a spring with a spring constant of 180 nm with what frequency does the boy
a 34 g bullet travelling at 120ms embeds itself in awooden block on a smooth surface the block then slides toward
a soccer player kicks a rock horizontally off a 400 m high cliffinto a pool of water if the player hears the sound of
inez is putting up decorations she ties three light silkribbons together at the top of a getaway and hang a balloon
sam heaves a shot with weight 16-lb straight upward giving it aconstant upward acceleration from rest of 460 ms2 fora
a conducting sphere that carries a total charge of -6 muc isplaced at the center of a conducting spherical shell that
a 15 kg bass is swimming along at 25 ms when it ingests a 50 kg minnow traveling in the opposite direction at 3 ms what
when catching a baseball a catchers glove moves by 12 cm along the line of motion of the ball if thebaseball exerts a
a person lifts a 47 kg cement block avertical distance of 102 m and thencarries the block horizontally a distance of
a rock is dropped from the top of a 100 - m - tall building andlands traveling at a speed of 30 ms how much energy was
a rubber ball filled with air has a diameter of 250 cm and a massof 0540 kg what force is required to hold the ball in
a person weighs 170lb assuming the density of the averagehuman body is about that of water estimate her bodys volume
a sealed cubical container 160 cm ona side contains three times avogadros number of molecules at atemperature of
a surveyor measures the distance across a straight river by thefollowing method starting directly across from a tree on
a beach ball mioving with a speed of 127 ms rolls off apier and hits the water 075m from the end of the pier how high
to stop a car first you require a certain reaction timeto begin braking then the car slows down at a constant
an electron in a vacuum is first accelerated by a voltage of 21100 v and then enters a region in which there is a
a 15-cm-diameter cylinder of heliumgas is 20 cm long and at 20degc thepressure gauge reads 120 psia how many helium