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the mass of a star is 175middot1031 kg and it performs one rotation in 373 days find its new period in days if the
a double slit is opposite the center of a 17-m wide screen 23 m from the slits the slit separation is 24 microm and the
when a car going 30ms turns left around a curve of radius 35 cm the 60 kg passenger slides to the right how much force
a 991 -m ladder with a mass of 223 kg lies flat on the ground a painter grabs the top end of the ladder and pulls
on a level road a truck collides head-on with a compact car the fenders lock and the two cars travel as one unit after
a motorcycle which has an initial linear speed of 64 ms decelerates to a speed of 15 ms in 57 s each wheel has a radius
two children hang by their hands from the same tree branch the branch is straight and grows out from the tree trunk at
the hubble space telescope hst has excellent resolving power because there is no atmospheric distortion of the light
what is the magnitude of the electric field strength e such that an electron when placed in the field would experience
a baseball is thrown with an initial horizontal speed of 20 ms and an initial vertical speed of 10 ms find the
what is the electric potential at the surface of a gold atomrsquos nucleus which is assumed to be spherical the radius
a person is riding a bicycle and its wheels have an angular velocity of 269 rads then the brakes are applied and the
an induced emf occurs in a conducting loop of wire 112m long as its shape is changed from square to circular what is
a ldquo75 wattrdquo light bulb uses an average power of 75w when connected to an rms voltage of 120v what is the
a size-5 soccer ball of diameter 226 and mass 426 rolls up a hill without slipping reaching a maximum height of 350
if alpha particles are caused to fall through a potential difference of 1500 volts determine their final speed if they
compare teh parameters for h for magnetostatics and d for electrostatics in your discussion include comments on their
a uniform plate of height 1020 m is cut in the form of a parabolic section the lower boundary of the plate is defined
how many lines per centimeter must a grating have if there is to be nosecond-orderspectrum for any visible wavelength
the tungsten filament of a certain 100 w light bulb radiates 250 w of light the other 975 w is carried away by
in 1990 walter arfeuille of belgium lifted a 2815-kg object through a distance of 171 cm using only his teetha how much
two different wavelengths of light are incident on a diffraction grating one wavelength is513nm and the other is
a bicyclist on a horizontal plane starts from rest and begins to pedal the wheel of radius r 0345m has a constant
a red laser pointer with a wavelength of 635 nm is shined on a double slit producing a diffraction pattern on a screen