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two identical conducting spheres fixed in place attract each other with a force of 0084 n when their center to
a suspension bridge is 600 m above the level base of a gorge a stone is thrown or dropped from the bridge at the
a lead ball is dropped into a lake from a diving board450 m above the water after entering the waterit sinks to the
two 17 kg masses are 15 m apart on a frictionless table each has nbsp 97 mu c of chargewhat is the magnitude of the
a copper rod has a length of 17 m and a cross-sectional area of41 x10-4 m2one end of the rod is in contact with boiling
a member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity by a factor of 380
at its farthest point the three-point line is 724 meters away from the basket in the nba a basketball player stands at
an organ pipe is 20 m long assume the pipe is cylindrical withone closed and one open end1 what is the wavelength of
a golfer tosses a golf ball straight up into the air and itreturns to his hand 15 seconds latera what was the initial
a stone is projected at a cliff h60 meters with initial speed 75ms at 60degrees above the horizontal how long does it
each square centimeter of the surface of an infinite planesheet of paper has 2400000 excess electrons find the
two particles are at the same point at the same time moving in the same direction par-ticle a has an initial velocity
assume that nasa fails in its attempt to put a communications satellite into geosynchronous orbit if the orbit is too
the ammonia molecule nh3 has adipole moment of 52e-30 cmiddotm ammonia molecules in the gasphase are placed in a
a proton is moving in uniform electric field of 14 nc directed to the west at point a the velocity of the proton is
a 50 resistor is connected in series with a 100 resistor this combination is then connected in parallel witha 75
one of the 120v circuits in your house is protected by a 30acircuit breaker this circuit contains a 1200w toaster
an ac generator produces a sinusoidal voltage at 60 hz with amaximum of 120 va what is the average voltagenbspnbspnbsp
a small piece of dust of mass m 47 microg travels through an electric aircleaner in which the electric field is 527 nc
a source emits sound uniformly in all directions a radial line isdrawn from this source on this line determine the
a spider hangs from a strand of silk whose radius is58x10-6 m the density of the silk is 1100kgm3 when the spider moves
when a light bulb is connected across the terminals of a battery the battery delivers 20 w ofpower to the bulb a
the bremsstrahlung x-ray spectrum of both moand w cut off have zero intensity at about 0035 nm x rays with this
a car moving along a straight stretch of high-way begins toaccelerate at 00345 ms2 it takes the car 709 s to cover 1 km
a spring is standing upright on a table with its bottom end fastened to the table a block is dropped from a height 44