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the density of air at ordinary atmospheric pressure and 25 degrees c is 119 gl what is the mass in kilograms of the air
the binding energy of a nucleus is 1370 mev what is the mass defect of the nucleus in atomic mass
in an experiment designed to measure the magnitude of a uniform magnetic field electrons are accelerated from rest
gallium crystallizes in a primitive cubic unit cell the length of an edge of this cube is 362 pm what is the radius of
a metal wire has a resistance of 1000 at a temperature of 20 0 c if the same wire has the resistance of 1055 at 90 0
a reaction has a rate constant of 00867 sec-1 how much of the compound in moll is left after 0545 min if there was 0528
a block of mass m 120 kg has a speed v and is behind a block of mass m400 kg that a speed 0500 ms the surface is
a grating has 1000 linesmm how wide must the grating be to resolve the mode structure of a 6328 nm laser if the
one important daughter nucleus produced in the decay of tellurium-132 is iodine-132 which has a half life of 23 hours
a copper sheet of thickness 270 mm is bonded to a steel sheet of thickness 410 mm the outside surface of the copper
a wire of initial length lo and radius ro has measured resistance of 10 the wire is drawn under tensile stress to a
calculate how many grams of the first reactant are necessary to completely react with 534 g of the second
miles tugo is camping in glacier national park in the midst of a glacier canyon he makes a loud holler he hears an echo
what would be the mass and volume of th-230 density 117 gcm3 that you would extract from 110 american tons 220000
after 600 kg of water at 775 oc is mixed in a perfect thermos with 300 kg of ice at 00 oc the mixture is allowed to
air flows steadily through a gas turbine air enters the turbine at 2mpa and 427 degrees c with a velocity of 20 ms and
for the point group c3v does the coefficient for 2c3 operation indicate that you can rotate it twice in one direction
suppose that the voltage of the battery in the circuit is 32 v the magnitude of the magnetic field directed
gasoline is produced from crude oila nonrenewable resource ethanol is mixed with gasoline to produced a fuel called
a piece of copper wire is formed into a rectangle the length of the rectangle is 3m and the width is 2m a magnetic
two beams of 1kev neutrons intersect at an angle of 30o one beam has a neutron density of 1times106 neutronscm3 the
calculate the work done during the isothermal reversible expansion of a van der waals gas account physically for the
nonrenewable energy means sustainable energy and a sustainable energy future is one that does not include significant
derive an expression for the compression factor of a gas that obeys the equation state pv-nb nrt where b and r are
the centripetal force on an 820 gram object on the end of a 20-m massless string being swung in a horizontal circle is