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qualitatively explain why in day-to-day life we normally dont seewires attracted to each other or pushed apart from
a light wave was reflected off of a mirror at an angle of37deg what was the incident
the reaction between sulfamic acid and sodium nitrite produced 388ml of nitrogen gas collected over water at 23 degrees
a spring mass system moves with omega 10 rads the oscillation starts when the mass has been pulled 008 m to the right
imagine you have two 25 m long wires running parallel to each other separated by 10 cm carrying 200 ma currents what is
the pilot of an airplane wants to fly east in the presence of a 50 kmh wind with direction 60 degrees north of west as
an ideal step-downtransformer has a primary coil of 380 turns and a secondary coil of20 turns its primary coil is
two kilograms of water at 19 degrees c is heated to 21 degrees c what was the entropy change for the system in
a certain kind of glass has an index of refraction of 1650 for blue light of wavelength 440 nm and an index of 1620for
a diverging lens has a focal length of absolute value 250 cm areal object is placed 3100 cm from the lensfind the image
ethylene c2h4 produces a large amount of heat when combined with pure oxygenassuming no other competing reactions and
an object is attached to the lower end of a 100-coil spring that is hanging from the ceiling the spring stretches by
a 700kg man jumps 100 m down onto a concrete walkway hisdownward motion stops in 00200 seconds if he forgets tobend his
the current in a coil with a self-inductance of 15mh increasesfrom 0 to 20 a in a tenth of a second what is the induced
if a plot of ln k versus 1t for this reaction has the equation y -132 x 105x 111 what is the activation energy for
estimate the energy associated with the repulsion of the electron shells of a lithium fluoride lif molecule the
light of 600nm passes thrugh a circularaperture and is focused by a lens with a numerical aperturena01a what is the
a 100l container has a 100g of ammonia gas and 500g of nitrogen gas at 500 degrees celsius calculate the total pressure
a fish takes the bait and pulls on the line with a force of25 rm n the fishing reel whichrotates without friction is a
a 0017-kg record with a radius of 15cm rotates with an angular speed of 29rpm find the angular momentum of the
a 20 kg block slides along a frictionless table at 20 ms itencountes a 40 kg block whereupon the blocks stick together
place the following elements in order of decreasing atomic size silicon nitrogen helium potassium magnesium and
a student synthesized 6895 g of barium iodate monohydratebaio32h20 by adding 3000 ml of 5912x10-1 m barium nitrate
a lightning bolt consisting of electrons moves from the cloudto the ground near the equator it carries a currentof
compare the eclipsed conformers of 111-trifluorobutane c2-c3 why is one of the eclipsed conformers most stable why is