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a nylon guitar string has a linear density of 70 gm and is under a tension of 155 n the fixed supports are distance d
the energy released by alpha decay in a 5000-g sample of 238 pu is to be used to heat 450 kg about 1 gallon of water
block a sits on a table and is in thermal equilibrium with the table the internal energy of block a is 100 j block b
caught in an avalanche a skier is fully submerged in flowingsnow of density 96kgm3 assume that the average density of
a 5kg mass starts from rest and slides down on an inclined plane hits a bumper at the bottom of the inclined plane and
you want to build a grandfather clock with a pendulum aweight on the end of a light cable that has one second between
a net force of 132 n acts on a baseball m140g for a period of 0045s what is the magnitude of the change in momentum of
two protons radius 10-15 m are headed directly toward each other with equal speeds use the principle of energy
a light beam is incident on heavy flint glass n 165 atthepolarizing angle calculate the angle of refraction for the
a proton moving to the right at 62 times 105 ms-1 enters a region where there is an electric field of 62 knc-1 directed
a 0275 kg puck initially at rest on a frictionless horizontal surface is struck by a 0220 kg puck that is initially
a satellite moves in a circular orbit around the earth at aspeed of 4260 ms determine the satellites altitude above
a man throws a rock from the top of a cliff that is 500 m above ground level with an initial speed of 270 ms at an
compare a refrigerator set at 2 oc and a freezer set at -18 oc both of which are operating in the room with temperature
the shaft of a pump starts from rest and has an angularacceleration of 300 rads2 for 180s at the end of thisinterval
calculate total and individual w q u h and s of an otto engine operating on stoichiometric ethanol - oxygen gas mixture
a a particle with charge 52 coulombs and velocity v 59 ms enters a region in which the magnetic field of magnitude 3 t
in the actual combustion of benzene in an engine the af ratio was 121 calculate the analysis of the wet product of
a resonant circuit using a 240 muf capacitor is to resonate at 155 khz the air-core inductor is to be a solenoid with
liquid hexane c6h14 burns in oxygen gas to yield carbon dioxide and water what is the minimum mass of oxygen required
if astronauts could travel at v 0950c we on earth would sayit takes 4200950 442 years to reach aplha centauri 429light
what is the theoretical yield of vanadium that can be produced by the reaction of 40 g of v2o5 with 40 g of calcium
you throw a ball with a speed of 25ms at an angle of 400deg above the horizontal directly toward awall the wall is 220
which class of materials biological organisms bioogical chemicals or non-biological chemicals react most dramaticallyto
using a twine with a density of 0002 kgm and a curved rod with a space of 1 m between the ends describe how you would