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unpolarized light passes through two polarizers in turn withpolarization axes at 45deg to each other what is the
in a youngs double-slit experiment two rays of monochromaticlight emerge from the slits and meet at a point on a
the water supply of a building is fed through a main pipe900 cm in diameter a 200 cm diameterfaucet tap located 190 m
on a roller coaster ride the total mass of the cart - with passengers included - is 290 kg peakk is at 445 m above the
to reach the center of teh gym ceiling a 500n student tightroper walks to the center of a rope strung above the gym if
two flat surfaces are exposed to a uniform horizontal magneticfield of magnitude 065 t the first surface is tilted at
suppose a 10 ml sample of solution is to be tested for cl- by adding 2 ml of 15 m agno3 what is the minimum number of
a sphere of radius r starts from rest and rolls withoutslipping along a curved surface dropping through a
why does the quantum mechanical description of many electron atoms make it difficult to define a precise atom
on a frictionless horizontal surface a 150 kg mass travelingat 350 ms collides with and sticks to a 300 kg mass that
a 392-kg boy riding a 267-kg skateboard at a velocity of 537 ms across alevel sidewalk jumps forward to leap over a
a sample of gas occupies a volume of 459 ml at 0736 atm and 29 degrees celsius calculate the volume of the gas if its
a roller ocaster descends 35 meters in its initial drop and then rises 23 meters before going over the first hill if a
in 2008 chinas tainted milk scandal spreaded around the world this major issue is caused by the melamine-contaminated
a particle of charge q e moves in a circle of radius 046m with speed v 2800times107 mstreating the circular path as
two stars are 20 x 1011 m apart and are equallydistant from the earth a telescope has an objective lens with adiameter
an object is 927 cm from the surface of a reflective spherical christmas tree ornament 838 cm in diameter what is the
outline the steps involved in basifying and extracting caffeine from 20 ml of tea using 2 x 60 ml dichloromethane
hydrochloric acid can dissolve calcium carbonate predict the balanced chemical reaction how much hcl is required to
a flat uniform circular disk radius 260 m mass 100 x 102 kg is initiallystationary the disk is free to rotate in the
suppose that 2265 ml of a 002024 m permanganate solution kmno4 was needed to react with the fe2 in a sample that had a
a playground carousel is free to rotate about its center onfrictionless bearings and air resistance is negligible
suppose that 3555 ml of permanganate solution kmno4 is required to titrate 12055 grams of ironii ammonium sulfate
suppose that 02553 moles of kmno4 were required to exactly titrate the fe2 in a sample how many moles of fe2 were in
list all possible term symbols of allowed excited states for an atom with a ground state term symbol of 3d1co2 has a