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a man and a woman start at the same location the man walks north for 30 minutes and travels a distance of 22 km he then
suppose that the electric field in the earths atmosphere is e 138 102 nc pointing downward determine the electric
a rock is thrown from the roof of a building with a velocity vo and an angle of alphao from the horizontal the building
two soccer players start from rest 45 m apart they run directly toward each other both players accelerating the first
a subway train starts from rest at a statrion and accelerates at a rate of 165ms2 for 142s it runs at constant speed
a patient with a dislocated shoulder is put into a traction apparatus as shown in the figure the pulls and have equal
tension is maintained in a string as in the figure below the observed wave speed is 27 ms when the suspended mass is 30
an object moves uniformly around a circular path of radius 220 cm making one complete revolution every 180 sa what is
a man pushing a mop across a floor causes it to undergo two displacements the first has a magnitude of 156 cm and makes
a hockey puck moving at 34ms slams through a wall of snow 40cm thick it emerges moving at 17msa assuming constant
the charge on a capacitor increases by 21mu c when the voltage across it increases from 99v to 119vpart a what is the
a charge of -10 microc is located at the origin a second charge of 26 microc is located at x 0 y 01 m and a third
a person driving her car at 460 kmhr approaches an intersection just as the traffic light turns yellow see figure below
water ripples are produced by making a cork oscillate up and down at a frequency of 5 hz the peaks of the ripples are
two small balls are given positive charges when they are a distance of 156 apart the repulsive force between them has a
a car is driven east for a distance of 49 km then north for 31 km and then in a direction 25deg east of north for 30 km
a 129-g mass is suspended 345 cm above a nonconducting flat plate directly above an embedded charge of q if the mass
a railroad car with a mass of 20000 kg rolls into a second stationary car with a mass of 40000 kg the cars latch
raindrops fall 1000 m from a cloud to the ground if they were not slowed by air resistance how fast would the drops be
two runners start simultaneously from the same point on a circular 200-m track and run in the same direction one runs
a nonconducting rod of length l 850 cm has charge -q -456 fc uniformly distributed along its lengtha what is the
the nucleus of 8be which consists of 4 protons and 4 neutrons is very unstable and spontaneously breaks into two alpha
a uniform electric field exists in the region between two oppositely charged plane parallel plates an electron is
if a proton and an electron are released when they are 700times1010 apart typical atomic distances find the initial