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a student mixes 789 g of water at 665degc with 651 g of water at 301degc in an insulated flask what is the final
a 250 ml sample of anbsp01900nbspmnbspnbspsolution of aqueous trimethylamine is titrated with
a piece of silver with a mass 392 g has a heat capacity of 929 jdegc what is the specific heat of
determine the number of moles of p4o10 required to produce 470 moles of phosphoric aciddetermine the number of moles of
menthol is a flavoring agent extracted from peppermint oil it contains c h and o in one combustion analysis 1000 mg of
when heated lithium reacts with nitrogen to form lithium nitride6lis n2gnbsprarrnbsp2li3nswhat is the theoretical
a 12 l flask contains 0500 mole of ammonia nh3 at 150degcnbspcalculate thenbsppressure of the ammonia inside the
the reduction potential for all other half-reactions are measured relative to thenbsphalf-reaction2haq 2e-nbsp-gt
why would a phosphate buffer with only half as much nah2po4 compared to na2hpo4 decrease the solutions ability to
why does molten iron that is heated until white hot the poured into a mold changes its color from yellow to red as it
consider the case of a radioactive element x which decays by electron beta emission with a half-life of 4 days to a
a spinning top initially spins at 16rads but slows down to 12rads in 18s due to friction if the rotational inertia of
jerry has managed to hack into the operating software of mechano mm 250 kg the evil robot cat the picture shows jerry
a 4320 kg block of wood rest on desk the mus between the block and the desk is mus 0455 and muk 0205 at time t 0 a
tom mt 200 kg is chasing jerry mj 0500 kg as you can see both are running toward the right toms velocity is vt 250
anbspas a city planner you receive complaints from local residents about the safety of nearby roads and streets one
1 albert pushes a 6-kg box across a level floor he pushes with a force of 43 newtons and observes that the box
a 375-kg box is pulled up a ramp that is inclined at an angle of 330deg with respect to the horizontal as shown below
ohms lawresistors typically are sold commercially have tolerances of either plusmn5 of plusmn10 of their theoretical
consider three force vectors f 1 with magnitude 52 n and direction 125 f 2 with magnitude 92 n and direction 193 and
the particles in the nucleus of an atom are approximately 100times10-15 m apart while the electrons in an atom are
coulombs law for the magnitude of the forcenbspfbetween two particles with chargesnbspqnbspandnbspqprimeseparated by a
an electron enters a magnetic field of 069 t with a velocity perpendicular to the direction of the field of 300ms
what kind of forces are applied when a marble is rolling down a circular ramp shaped almost like a spring or parking
a thick spherical shell of charge q and uniform volume charge density rho is bounded by radii r1 and r2 gt r1 with v 0