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white light is incident on a soap film n 130 ubaur tge reflected light looks bluish because the red lightlambda 670nm
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assume that you are an observer located at a latitude of 40degrees north on earth draw a fully labeled diagram showing
a 40 cm telescope has a focal ratio of f10a what is the light-gathering power of this telescoperelative to that of a
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on an essentially frictionless horizontal ice rink a skatermoving at 20 ms encounters arough patch that reduces her
a stone is dropped from rest into awell the sound of the splash is heard exactly 250 s later find the depth of the well
in a science fiction story a microscopic black hole is given anenormous positive charge by firing an un-neutralized ion
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three moles of nitrogen gas n2 at 270degc are contained in a 258 l cylinder find the pressure the gas exertson the
a skydiver jumps out of a plane and reaches her terminal speed of120 mph after falling for 15 s how fast will the
a certain toaster has a heating element made of nichrome resistancewire when the toaster is first connected to a 110 v
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a powerful laser can emit in 056x10-2 s anintense pulse of light having an energy of 4500 j if thefrequency of the
a toaster rated at 1055 w operates on a120 v household circuit and a 400 m length of nichrome wire as its heating
according to kinematicsx5gt2 the acceleration is dependant only upona the mass of the objectb the distance that the
a beam of ultraviolet radiation with frequency of278x1015 hz is directed on a clean metalsurface the work function of
the wavelength of visible light varies from 380 nm to 750nm as the color of the light changes from violet to red
a small ball rolls horizontally off the edge of a tabletop that is117 m high it strikes the floor at a point 118 m
assume that the engine of a car with mass m supplies a constantpower p to the wheels to accelerate the car the car is
an airplane is flying with a velocity of 260 ms at an angle of 300deg with thehorizontal as the drawing shows when the
a particle is uncharged and is thrown vertically upward from groundlevel with a speed of 500 ms as aresult it attains a
two very long wires carrying a current i of 30 a out of the pageare at two of the corners of an equilateral triangle
a free electron is placed between two large parallelnonconducting plates that are horizontal and 16 cm apart one plate
a grandfather clock is controlled by a swinging brass pendulum thatis 10 m long at a temperature of30degca what is the