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a light ray traveling in air enters diamond with an angle of incidence of 35o the refracted angle inside the diamond is
a microscope has an objective lens with a focal length of 14 millimeter a small object is located 080 millimeter beyond
an electron is accelerated by a uniform electric field 1600 vm pointing vertically upwarda find the direction of
the spacing between two closely spaced oppositely charged parallel plates is decreased explain what happens to the
part a find where is the near point of an eye for which a contact lens with a power of 290 diopters is prescribedpart b
an 8 meter 280 newton uniform ladders rests against a smooth wall the coefficient of static friction between the ladder
by turning a crank you can do mechanical work at the steady rate of 015 horsepower if the crank is connected to paddles
a diffraction grating with d 2000 nanometers is used with a mercury discharge tube the diffraction used at a distance
two long parallel wires are separated by 28 centimeter one of the wires carries a current of 26 amp and the other
a typical red blood cell has a mass of 30 x 10-16 kilogram a blood sample located in a centrifuge is subjected to a
it can be shown that the maximum speed a black hole can spin is where the angular momentum l is given by lcgm2 the
when a pendulum with a period of 200000 second is moved to a new location from one where the acceleration of gravity
two 85 watt 120 volt light bulbs are wired in series and then the combination is connected to a 120 volt supply find
the corroded contacts in a light bulb socket have 85 ohms total resistance find how much actual power is dissipated by
a 2 centimeter tall object is located in front of a mirror a 1 centimeter tall upright image is formed behind the
an object is 15 centimeter in front of a concave mirror with a focal length of 22 centimetera locate the imageb
the distance between retina and lens for a normal human eye is about 250 cm and the pupil can vary in size from 2 mm to
a spring has a length of 0230 meter when a 0300 kilogram mass hangs from it and a length of 0750 meter when a 180
a 1 centimeter tall candle flame is 62 centimeter from a lens with a focal length of 22 centimetera evaluate what is
a very small 51 gram steel ball is released from rest and falls vertically onto a steel plate the ball strikes the
the plate on the back of a certain computer scanner says that the unit draws 030 amp of current from a 120 volt 60
the middle-c hammer of a piano hits two strings producing beats of 140 hertz one of the strings is turned to 240 hertz
the eiffel tower is built of wrought iron approximately 300 meter tall find how much its height changes between july
a 1 inch diameter hose has water flowing though it at 30 meter per second if the hose is narrowed to 12 inch diameter
the electric potential in a certain region is given by the equation vx y z 3alpha x2y3-2gamma x2y4z2 where the