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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
water stands at a depth d350m behind the vertical upstream face of dam of width w314m discover a the net horizontal
compute the momentum total energy and kinetic energy of a proton moving with a velocity v099c relative to the
1 a meter stick is rotated about the end labelled 000 cm therefore that the other end of the stick moves through an arc
two equal air-filled parallel-plate capacitors are connected in parallel and charged to potential difference delta v
a baseball approaches home plate at a speed of 450 ms moving horizontally just before being hit with a bat the batter
several identical capacitors are connected along the edges of a square grid so that along each edge there is exactly
n7 equal charges are located in the seven sides of a symmetrical octagon distance r from the center obtain the
a calculate the energy in kw-h necessary to place a 10 kilogram object in low earth orbit in low earth orbit the height