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a student observes that a 126 ml dry flask with a foil capweighs 50162g the student then adds 5 ml of an unknown
if 350 j of heat are added to 63 moles of a monatomic gas at constant volume how much does the temperature of the gas
during an adiabatic process the temperature of 450 moles of a monatomic ideal gas drops from 515degc to 193degc find
an electron collides elastically with a stationary hydrogen atomthe mass of the hydrogen atom is 1837 times that of the
silver crystallizes in face centered cubic unit cell a silver atom is at edge of each lattice point the length of the
a 205 g sample of palmitic acid c16h32o2 a common constituent of fats is burned in a bomb calorimeter the temperature
a sperical mirror is polished on both sides when the convex side is used as a mirror the magnification is 18 what is
a sailor strikes the side of his ship just below the waterline hehears the echo of the sound reflected from the ocean
a fragrance compound with molecular weight of 136 gmol is to be added to an aqueous solution to form aconsumer product
a 2000kg truck traveling at a speed of 6ms makes a 90 degree turn in a time of 4s and emerges from this turn with a
a flat circular coil with 25 turns and a radius of 5 cm lies in the plane of the paper a changing magnetic field is
you have one lens with a focal length f1432 cm if you want to produce an image of the bulb that is enlarged by a factor
an object is placed 14 cm to the left of a two lens combinationthe left hand lens has a focal length of 12 cm the right
a steady beam of alpha particles q 2etraveling with constant kinetic energy 18 mev carries a current of 030 microaa
a 01651-g sample of an unknown monoprotic acid was dissolved in 284 ml of water and titrated with 00634 m naoh solution
a 6kg object moving 2ms in the positive x direction has a one-dimensional elastic collision with a 4kg object moving
a tunnel of lenght l150 m height h72 m and width w58 m with a flat roof with a distance d 60 m beneath the ground the
a cylinder contains 250 g of helium at 200 k the external pressure is constant at 1 atm the temperature of the
a potential difference of 100 v willbe applied to a 400 m length of18-gauge copper wire diameter 00400 in calculate
how many grams of ammonium chloride pka924 58491 gmol should be added to 500 ml of 01060 m ammonia to make a buffer
a 3kg object moving in the positive x direction has a one-dimensional elastic collision with a 5kg object initially at
mgnh4po4 6h2o has a solubility of 0023 g100ml in water suppose a 502 g sample were washed with 20ml of water what
a flywheel 0800 m in diameter pivots on ahorizontal axis a rope is wrapped around the outside of theflywheel and a
strong sunshine bombards the earth with about 1kjm-2 in 1s calculate the maximum mass of pure ethanol that can be
a friend in a spaceship travels past you at a high speed he tellsyou that his ship is 22 m long and thatthe identical