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you buy a plastic dart gun and being a clever physics student youdecide to do a quick calculation to find its maximum
two trees have perfectly straight trunks and are both growingperpendicular to the flat horizontal ground beneath them
a piece of copper wire is formed into a single circular loopof radius 13 cm a magnetic field is oriented parallel to
a particle leaves the origin with an initial velocityof 237 ms in the x direction and moves with constantacceleration
1 what is the speed of a 26 kinetic energy electronexpress your answer using two significant figures2 what is the speed
a passenger walks from one side of a ferry to theother as it approaches a dock if the passengers velocity is 140ms due
a certain freely falling object requires 145 s to travel thelast 380 m before it hits the ground from what height above
the chemical energy releasedby burning a gallon of gasoline is approximately13x105kjestimatethe total energy used by
a hunter aims directly at a target on thesame level 130 m awaya if the bullet leaves the gun at aspeed of 290 ms by how
a rock climber throws a small first aid kit to anotherclimber who is higher up the mountain the initial velocityof the
in reaching her destination a backpacker walks with anaverage velocity of 103 ms due west this average velocityresults
a uniform electric field exists in the region between twooppositely charge plane parrallel plates a proton is released
a diverrunning 19 ms dives out horizontally from the edge of a verticalcliff and 28 s later reaches the water belowhow
as two boats approach the marina the velocity of boat1 relative to boat 2 is 236 ms in a direction 408deg east ofnorth
two canoeists in identical canoes exert the same effortpaddling and hence maintain the same speed relative to the
the far point of a nearsighted person is 50m from her eyes and she wears contacts that enable her to see distant
a river flows due east with aspeed of 22 ms a man steers amotorboat across the river his velocity relative to the water
two stars in a binary system orbit around their center of mass the centers of the two stars are 790x 1011 m apart the
a model of a helicopter rotor has four blades each310 m in length from the centralshaft to the blade tip the model is
an airplane wing is designed so that the speed of the air acrossthe top of the wing is 220 ms when thespeed of the air
a man and a boy carry a canoe 610 m longand weighing 371 n the canoe is heldoverhead in a horizontal position the boy
while bungee jumping the free fall is 15ms downward at thatpoint the cord begins to stretch and slows the jumper to a
a gaussian sphere of radius 400cm is centered on a ball that has a radius of 100cm and a uniform charge distribution
estimate the total pathlength traveled by a deuteron in the syslotron of sample problem 28-5 during the entire
in bosnia the ultimate test of a young mans courage used to be tojump off a 400 year old bridge now destroyed into the