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the 1994 winter olympics include theaerials competition in skiing in this event skiers speed down aramp that slopes
a child pulls a 700 kg sled along a flat surface the coefficient friction between the sled and the snow is 0100 the
the coefficient of static frictionbetween hard rubber and normal street pavement is about 08 on how steep a hill
a body is released from rest a long way from the centre of theearth with what velocity will it hit the earth describe
a boat with initial velocity of vo is slowed by africtional force f -beava find the motion xtb find the time and
an arrow starting from rest leaves the bow with a speed of25 ms if the average force exerted on the arrow by the
you are riding in an elevator on the way to the eighteenthfloor of your dormitory the elevator is accelerating
two resistors connected in series with each other and a 18 vbattery are connected in a loop the voltage drop across
a small button placed on a horizontal rotating platform withdiameter 0320m will revolve with the platform when it is
you are to make four straight-line moves over a flat desert floorstarting at the origin of an xy coordinatesystem and
a particle with charge of 4 microcoloumbs is at the origin another identical particle is placed 2 m from the origin on
in what part of the em spectrum would a photon of energy 95 x10-25j be found what is its energy in electron
calculate the change in internal energy for each of the following systemsa 100 joules of energy is added to a system
the longest recorded pass in an nfl game traveled 83 yards in theair from the quarterback to the receiver assuming that
the earth orbits the sun once a year 316 x 107 s in a nearlycircular orbit of radius 150 x 1011 m with respect to the
a copper rod 81cm long is used to poke a fire the hot end of the rod is maintained at 105 degrees celcius and the cool
on a summer day the air conditioning breaks down and the air inyour classroom becomes very warm and muggy with a vapor
a person walks into a room that has on opposite walls two plane mirrors producing multiple images when the person is
the left ventricle of the heart accelerates blood from rest to avelocity of 21cmsa if the displacement of the blood
the figure shows two charged particles on an xaxis -q -640 times10-19 c at x -400 m and q 640 times10-19 c at x 400 m
a point source of light is 842 cm below the surface of a body of water find the diameter of the circle at the surface
when a tuning forkof frequency 500 hz is held above a tube resonances are foundwhen the water level is at distances 160
suppose you have two identical containers with the samevolume both submersed in a hot water bath so that both
a conventional mercury thermometer consists of a thin glass capillary filled with mercurynbsp the capillary is enclosed
suppose a simple pendulum consists of a small weight called apendulum bob suspended from a 052-m-long string if the