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a diffraction grating with 13700 lines per 254 cm ie per in is utilized to view the visible spectrum from a hydrogen
a class of ten students taking an exam has a power output per student of 130 watt assume that the initial temperature
a 800-n passenger in a car presses against the car door with a 200n force when the car makes a left turn at 13 ms the
in old science fiction movies writers attempted to come up with novel ways of launching spacecraft toward the moon in
two astronauts each having a mass of 800 kilogram are connected by a 90 meter rope of negligible mass they are isolated
an american football game has been canceled because of bad weathering cleveland and two retired players are sliding
a force acting on a mass 5 kilogram over an interval of time is described by the equation ft 7t3 - 2t 4 where f is
a bullet with mass m 800 gram is traveling with a velocity of v0 365 ms to the left when it elastically collides with
a child slides down a slide with a 30 degree incline and at the bottom her speed is precisely two-thirds what it would
a car weighing 7600 newton moves along a level highway with a speed of 100 kmh the power of the engine at this speed is
a circular-motion addict of mass 70 kilogram rides a ferris wheel around in a vertical circle of radius 10 meter at a
determine the phase difference between the resistor and inductor voltage which signal leads the
a bullet is fired from the ground at an angle of 60o with initial speed vo30 fts evaluate how far does the bullet
a bullet is fired from the ground at an angle of 45o find what initial speed must the bullet have in order to hit the
an ideal radiator radiates with a total intensity of i 581 kwm2 find at what wavelength does the spectral emittance
an electric motor rotating a workshop grinding wheel at a rate of 124 revmin is switched off assume constant angular
a roller-coaster car has a mass of 920 kilogram when fully loaded with passengers as the car passes over the top of a
conservation of momentum means that m1v1i m2v2i m1v1f m2v2fis the force of the man 750n substituted for m1 and the
a 730 newton man stands in the middle of a frozen pond of radius 50 meter he is unable to get to the other side because
fm radio stations use radio waves with frequencies from 880 to 108 mhz to broadcast their signals assuming that the
a photographer in a helicopter ascending vertically at a constant rate of 14 ms accidentally drops a camera out the
a rock is thrown vertically upward from ground level at time t 0 at t 230 second it passes the top of at all tower
a helicopter is ascending vertically with a speed of 50 ms at a height of 14 meter above the earth a package is dropped
a 320 cm violin string with linear density 066 gm is placed near a loudspeaker that is fed by an audio-oscillator of
a police officer in hot pursuit drives her car through a circular turn of radius 300 meter with a constant speed of 725