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a 6 kg block is on a frictionless plane inclined at 37 degrees the block is attached by a weightless cord passing over
how would you prepare 500ml of a solution that has a new concentration of 45m if the stock solution is
an object acted on by three forces moves with constant velocity one force acting on the object is in the positive x
how many grams of carbon dioxide co2 can form when a mixture of 495 g of ethylene c2h4 and 325 g of oxygen is ignited
three equal positive point charges of magnitude q 500 c are located at three corners of a square of edge length d 72
a hoodlum throws a stone vertically downward with an initial speed v0 from the roof of a building a height h above the
what mass of no2 can be produced by the complete reaction of 4300 g of ammonia with 10500 g of oxygen4nh3 7o2--gt 4no2
you buy a plastic dart gun and being a clever physics student you decide to do a quick calculation to find its maximum
the compound isoeugenol is composed of 7320c 738h and 1942o what is the empirical formula of
a small droplet of oil with mass of 304times10-15 kg is held suspended in a region of uniform electric field directed
a skier is accelerating down a 300deg hill at a 420 ms2a what is the vertical component of her acceleration in ms2
which set of atoms is correctly arranged in order of increasing electronegativity lowest electronegative atom listed
a voltaic cell is constructed with two silver-silver chloride electrodes where the half-reaction isagcl s e- ag s cl-
an olympic long jumper is capable of jumping 82 m assume that his horizontal speed is 91 ms as he leaves the groundhow
scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit in one
which one of the following is the correct formula resulting from a combination of the common ions from these elements
a patient is given a 580-mg dose of iodine-131 to image the thyroid this nuclide has half life 80 days what mass of
a passenger on a boat moving at 120 ms on a still lake walks up a flight of stairs at a speed of 050 ms the stairs are
leadii phosphate pb3po42 s is allowed to come to equilibrium with its ions in otherwise pure water ksp 30 x 1044
two planes approach each other head-on each has a speed of 705 kmh and they spot each other when they are initially 150
determine the mass of copper that would release 438 j of heat while cooling from 284 degrees c to 25 degrees
a boat can travel 220 ms in still watera if the boat points its prow directly across a stream whose current is 140 ms
huck finn walks at a speed of 060 ms across his raft that is he walks perpendicular to the rafts motion relative to the
use standard heats of formation and absolute entropies to calculate the equilibrium pressure atm pco2 at 340 kcaco3s
a rocket blasts off and moves straight upward from the launch pad with constant acceleration after 33s the rocket is at