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the mass of a star is 139 x 1031 kilogram and it performs one rotation in 361 days determine its new period in days if
a 10- microf capacitor is charged to150 volt it is then connected across a 500-komega resistorif you know that the time
an electron moving with a speed of 43 x 105 ms in the positive x direction experiences zero magnetic force when it
you drag a trunk of mass m across a level floor using a mass less rope that makes an angle theta with the horizontal
compton used photons of wavelength 00711 nanometera determine what is the energy of these photonsb determine the
the hall voltage across a 08 millimeter thick conductor in a 09 t magnetic field is 32 microv when the current is 15
a spring 70 nm has an equilibrium length of 100 meter the spring is compressed to a length of 050 meter and a mass of18
a police officer investigating an accident determines from the damage done that a moving van hit a stationary van at 28
a particle moves along the x-axis its position is given by the equation x73t2-8t3 with x in meters and t in secondsa
a hypothetical planet has a radius 11 times that of earth but has the identical mass find the acceleration due to
a rectangular sample of a metal is 36 centimeter wide and 500 microm thick when it carries a 42 amp current and is
two 220 cm focal-length converging lenses are placed 165 cm apart an object is placed 350 cm in front of one lens where
light of a wavelength 625nm passes during a single slit by a width of 0320mm and forms a diffraction pattern on a flat
a proton is located at a distance of 0420 m from a point charge of 830 micro coulombs the repulsive electric force
a light ray of wavelength 559 nm is incident at an angletheta on the top surface of a block of polystyrene bounded by
discover the minimum aperture diameter of a camera that can resolve detail on the ground the size of a person20 m from
an am radio station operating at a frequency of 920 khz radiates 260 kw of power from its antennahow many photons are
a spark can jump among two non touching conductors is the potential dissimilarity is large a potential dissimilarity of
think about an atomic nucleus to be equivalent to a one-dimensional infinite potential well with l 11 x 10-14 m a
prob 1 two converging lenses a with a focal length of 20cm and b with a focal length of 50cm are placed 14cm apart an
an electron traveling at a speed of 732 x 10nbspnbsp 7 ms strikes the target of an x-ray tube upon impact nbspthe
a singly ionized helium atom he has only one electron in orbit about the nucleus what is the radius of the ion when it
a potters wheel is rotating around a vertical axis during its center at a frequency of 17 revs the wheel can be
a 480 kg disk is free to rotate about an axis during its center z the plane of the disk is horizontal and the radius of
an am radio station operating at a frequency of 960 khz radiates270 kw of power from its antennahow many photons are