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the transverse displacement y of a wave is given as a function of position x in meters and time t in seconds by the
a 15- block of ice is initially at a temperature of -35if 69times105 of heat are added to the ice what is the final
two students are asked to measure the dimensions of the same cylindrical bottle in order to see if it will hold 75 cm3
a solid uniform marble and a block of ice each with the same mass start from rest at the same height h above the bottom
what is the probability that a diatomic molecule modeled as a harmonic oscillator will be observed outside the
the hamiltonian of a system of two spin-12 electrons h 1z12z2 where z is the pauli matrix is an energy parameter and
a sample of limestone and other soil materials is heated and the lilmestone decomposes to give calcium oxide and carbon
a small conductive rod of length 17 m moves with a constant velocity v16 ms in a direction parallel to a long wire
the solubility of mnso4 monohydrate in water at 20deg c is 700g per 1000 ml of water a solution at 20deg c that is 422m
a block with mass m 200 kg is placed against a spring on a frictionless incline with angle 34deg the block is not
a black hole is roughly defined as a an object dense enough that the speed needed for launching things from its surface
how abundant are tryptophan and cysteine in proteins and what characteristics of these amino acids affect their
a 200 meter long horizontal plank whose mass is 300 kg is placed so that the very end the right end rests on a
a compound contains only c h and n combustion of 315 mg of the compound produces 302 mg co2 and 370 mg h2o what is the
the engine in a 1500kg car has a maximum power output of 200hp but 25 of the power is lost before reaching the drive
a 45 kg sample of water absorbs 345kj of heat if the water was initially at 221c what is its final
a 021-kg coffee mug is made from a material that has a specific heat capacity of 900 jkg middot cdeg and contains 036
a block of glass with n 166 is submerged in liquid for a ray striking the glass with incidence angle 330 degrees the
a rectangular block of wood m 219 kg floats on a calm fresh water lake with do 227 cm below the water when a dog
since 1976 brazil has made it mandatory that all automobiles run on a blend of 25 ethanol and 75 hydrocarbon based
a steam power plant has at the turbine entrance saturated vapor with a pressure of 40 bar the turbine exit is at 50
a fireman 540 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of
reaction a b proceeds with h - 25 kjtimesmol-1 s - 100 jtimesk-1timesmol-1 substance a was taken at the initial
a cylinder of gas with a movable piston contains 10 x 10-3 m3 of helium at -1000 degrees c the piston area is 48 cm2