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the milky way has a diameter proper length of about 12times105 light-years according to an astronaut how many years
the headlights on a certain car are gauged to be 11 m apart the diameter of the pupil in a human eye is 25 mm what is
a laser utilized in eye surgery emits a 344 mj pulse in119 ns focused to a spot 315 um in diameter on the retina
three identical resistors are linked in parallel the equivalent resistance increases by 700 omega when one resistor is
two cylindrical rods one copper and the other iron are identical in lengths and cross-sectional areas they are joined
you have a number of identical 4500 omega resistors a there is one way in which three of these resistors can be wired
1 what is the average speed of the jet aircraft during takeoff ms2 compute the distance covered by the jet aircraft
a hot-air balloon is filled with air to a volume of 400 x 103 m3 at 745 torr and 21 degrees celcius the air in the
suppose at certain time the wave function is n for all x between values x1cm and x2cm for all values of x outside the
what weight of the oxide can be obtained from 250g of the
a 65-kg skier is going down a slope oriented 33deg above the horizontal the area of each ski in contact by the snow is
the moons diameter is 348x106 m and its mean distance from the earth is 385x108 m the moon is being photographed with a
at age forty a man requires contact lenses f 650 cmto read a book held 250 cm from his eyes at age forty-five he finds
a wild horse starts from rest and runs in a straight line 29deg north of west after 36 s of running in this direction
a spaceship moving relative to an observer with a speed of 70c shines a beam of light in the forward direction directly
a cubical box is 75m on a sidea what are the dimensions of the box as measured by an observer moving with a speed of
how much heat will be released when a 100 gram iron meteor moving by speed of 10 kms falls to the surface of the
a surveyor is using a magnetic compass 71 m below a power line in which there is a steady current of 85 a what is the
in a uniform circular motion the a acceleration is parallel to the velocity bacceleration is vertical while the
to walk on water all you require is a pair of water-walking boots shaped like boats if each boot is 28 cm high and 33
a ray of light is traveling in glass and strikes a glassliquid interface the angle of incidence is 560deg and the index
a push on a 1-kg brick accelerates it neglecting friction to equally accelerate a 10-kg brick one would have to push
someone standing at the edge of a cliff throws one ball straight up and another ball straight down at the same initial
a slit with a width 010 mm is located 11 m from a screen if the light with lambda 600 nm is passed during this slit
think a michelson interferometer operated by light from a sodium lamp with lambdana 589 nm suppose the interferometer