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two converging lenses one with f 50 cm and the other with f 50 cm are made into a telescopea what are the
a 1500 ml sample of an aqueous solution at 25c contacins 152 mg of an unknown nonelectrolyte compound if the solution
using a wheel and axle machine a force of 100 n applied to the rim of a wheel can lift a load of 80 kg the diameters
the boiling point of an aqueous 183 m nh42so4 molar mass 13215 gmol solution is 1025 c determine the value of the vant
determine the vapro pressure in mmhg of a substance at 29c whose boiling point is 76c and has a changehvap of 387
when the wavelength of an incident radiation exceeds 560nm the emission of photoelectrons from a surface ceaseswhat is
how much energy must be removed from a 125 g sample of benzene molar mass7811gmol at 4250 k to liquify the sample and
determine the change in gravitational potential energy of a 70-kg skier-earth system when the skier goes down this
a muon formed high in earths atmosphere travels at speed v 092c for a distance of 43 km before it decays into an
how much heat is released when 105 g of stem at 1000c is cooled to ice at -150c the enthalpy of vaporization of water
a guitar string is 900cm long and has a mass of 317 g from the bridge to the support post l is 600cm and the string is
if neutrons were in thermal equilibrium at temp of 300k what is there average kinetic energy what is the de broglie
the heat of vaporization of water at 100c is 4066 kjmol calculate the quantity of heat that is absorbedreleased when
the rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water the sudden
what would be a beneficial way to study and memorize all chemistry based
a white solid soluble in water and alcohol but not in toluene does not melt when heated to 250degc however upon
find the magnetic field generated 50 cm above a single 25 cm long segment of copper wire carrying a current of 30 a
determine hvap for a compound that has measured vapor pressure of 243 torr at 273 k and 135 torr at 325
the excess internal energy of metabolism is exhausted through a variety of channels such as through radiation and
calculate the energies of the first four rotational levels of h127 free to rotate in three dimensions using for its
a 70 kg painter holding a 15 kg paint is climbing up a 30 m-long ladder which weighs 20 kg against a frictionless wall
you are entered into a bicycle race on a circular at track with a radius of 398 m you get set at the starting line and
compound a has a solubility of 18 grams per 100 grams of water at 25c cooling a saturated 200 gram solution of a
the angular velocity of a 755-g wheel 150 cm in diameter is given by the equation omegat 200 rads2t 100 rads4t3a
you will titrate your weak acid with a solution of naoh of about 010 moll the lowest molecular weight on the list of