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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
to a solution containing both acetic acid and sodium acetate hcl is added beside hydroxide ions which species will
a solution contains 0750 m ha ka 10 x 10-6 and 0250 m naa what is the ph after 0100 mole of hcl is added to 100 l of
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
a small speck of carbon the size of a pinhead contains about 1019 atoms the diameter of a carbon atom is 15 x 10-10m
- what might one do to verify that the global strain energy minimum has been identified for a compound- why is the
consider an infinite straight wire with a current i derive asymbolic expression for the magnetic field at a distance r
a steel cable is stretched across a gorge the cable is 190 m long and has a mass of 44 kg when one end of the cable is
in a circus performance a monkey is strapped to a sled and bothare given an initial speed of 50 msup a 250deg inclined
a skier starts from rest at the top of a hill that is inclined at104degwith the horizontal the hillside is 245 m long
a raindrop inside a thundercloud has charge8e- what is the electric force on the raindrop if the electric field at its
a 210 kg child on a 100 m long swing is released from rest when theropes of the swing make an angle of 330deg with
for the hydrogen atom calculate the wavelength of light needed to excite the electron from the fifth energy level to
a 720 kg base runner begins his slideinto second base when he is moving at a speed of 4 ms the coefficient of friction
how many grams of sodium formate nacho2 would have to be dissolved in 12 l of 013 m formic acid pka 374 to make the