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consider an atom with four and only four energy levelsa how many spectral lines will result from all possible
you fly your 150 m long spaceship at a speed of c3 relative to your friend your velocity is parallel to the ships
an ac generator is to have a maximum output of 338 v each coil has an area of 0120 m2 and a resistance of 155 and
a muon with rest energy 106 mev is created at an altitude of 4600 m and travels downward toward earths surface an
a ray of light strikes the midpoint of one face of an equiangular 60deg-60deg-60deg glass prism n 15 at an angle of
a 540 g sample of a conducting material is all that is available the resistivity of the material is measured to be 11
as you get ready for your early morning physics class you comb your hair in front of a planar mirror you know that you
find the drift velocity of conduction electrons in a gold wire of diameter 236 mm when a current of 0375 a flows in it
when a current flows in an aluminum wire of diameter 497mm the drift speed of the conduction electrons is 149x10-4 ms
microwaves used in laboratory experiments often have a wavelength of about 1 cm what is the frequency of these
a string with a length of 07 m is fixed at both endsa what is the longest possible wavelength for the traveling waves
a double slit is opposite the center of a 17-m wide screen 19 m from the slits the slit separation is 24 microm and the
a string with a length of 07 m is fixed at both endsif waves travel with a velocity of 118 ms on this string what is
a 325 g bullet picks up an electric charge of 155 microc as it travels down the barrel of a rifle it leaves the barrel
a 15-cm tall object is placed 050 m to the left of a diverging lens with a focal length of 020 m a converging lens with
light of wavelength 500 nm is incident normally on a diffraction grating the third-order maximum of the diffraction
a rope is used to pull a 557 kg block at constant speed 278 m along a horizontal floor the force on the block from the
two slits separated by 00530 mm and located 140 m from a viewing screen are illuminated with monochromatic light the
a fish in water sees the sun by look at an angle of 33 degrees with the vertical normal given the index of refraction
the index of refraction for a certain kind of glass is 1648 for violet light and 1619 for red light a ray of violet
a mass of 014kg on the end of a spring oscillates with a period of 045 s and an amplitude of 015 m find the equation
a uniform narrow tube 179 long is open at both ends it resonates at two successive harmonics of frequencies 285 and 342
a radiator has an emissivity of 90 and its exposed area is 123 m2 the temperature of the radiator is 100 degrees c and
an electron is accelerated inside a parallel plate capacitor the electron leaves the negative plate with a negligible
a playground merry go round has a radius of 440 m and a moment of inertia of 245kgm2 and turns with negligible friction