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a person pulls a toboggan for a distance of 436 m along the snow with a rope directed 283 deg above the snow the
the power radiated by a star is 80 x 1030 w what is the intensity of the radiation from this star at a distance of 10 x
what is the rms current in an rl circuit when a 600hz 240v rms ac voltage is applied where r 170kohm and l 450mh here i
an electron initially at rest is accelerated between two parallel plates 2000 cm apart the space between the plates is
light traveling in henzene n 150 is incident on the flat surface of a piece of plastic it is found that if the light in
a conducting sphere with charge -q is surrounded by a concentric conducting spherical shell the shell has a net charge
a bicycle tire whose volume is 41 x 10-4 m3 has a temperature of 283 k and an absolute pressure of 331 x 105 pa a
the critical angle for light traveling in a particular optical medium and incident on an interface with air is 467o
a sample of ethyl alcohol c2h5oh has a density of 806 kgm3 and a volume of 173 x 10-3 m3a determine the mass in kg of a
a quantity of ideal gas requires 800 kj to raise the temperature of the gas by 100 k when the gas is maintained at
an electron initially at rest is accelerated between two parallel plate 2000 cm apart the pace between the plates is a
a a bungee jumper with mass 520 kg reaches a speed of 135 ms moving straight down when the elastic cord tied to her
a goldfish bowl is spherical 8 cm in radius a goldfish is swimming 30 cm from the wall of the bowl where does the fish
light of wavelength 500 nm is incident on a thin sheet of plastic film n 150 in air what is the thinnest the sheet can
light is traveling in an optical medium with a refractive index of 155 and is incident on an interface with air what is
a soap bubble with index of refraction 133 is floating in air if the thickness of the bubble wall is 114 nm what is the
a wire of thickness d 5 mm is tightly wound 200 times around a cylindrical core to form a solenoid a current i 01 a
it is desired to project an image of an object four times actual size with a lens of focal length 20 cm what object
a space traveler weighs 631 n on earth what will the traveler weigh on another planet whose radius is 2 times that of
to hoist himself into a tree a 720-kg man ties one end of a nylon rope around his waist and throws the other end over a
a thin film of oil with index of refraction 136 is located on a smooth wet pavement when viewed perpendicular to the
in the drawing the weight of the block on the table is 422 n and that of the hanging block is 185 n ignoring all
a helicopter flies over the arctic ice pack at a constant altitude towing an airborne 193-kg laser sensor which
two metal rods one silver and the other gold are attached to each other the free end of the silver rod is connected to
a prism has a vertex angle of 60deg and an index of refraction of 152 what is the minimum angle of incidence measured