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a bullet with mass 506 g is fired horizontally into a 2038-kg block attached to a horizontal spring the spring has a
nitrogen gas when combined with hydrogen gas forms ammonia gas according to the following equation n2g 3h2g 2nh3g
calculate the molar gibbs free energy change for the phosporylation of glucose by atp to produce glucose-6-phosphate
a 1 mf a 2 mf and a 3 mf capacitor are connected in parallel the combination being connected across a 9 volt batterya
what is the standard reaction enthalpy for which the equilibrium constant is doubled when the temperature is increased
point a to point b is 300miles horizontally a plane travels 500 mph there is a crosswind blowing north east at a 45
calculate the ph of a solution formed by mixing 1000ml of 20 m hclo with 2000 ml of 30 m kclo the ka for hclo is
two blocks of masses m1 200 kg and m2 440 kg are each released from rest at a height of h 400 m on a frictionless
what is the neutralization reaction for each of the following balance the equations ie write it outa hiaq naohaq --gtb
a catapult with a radial arm 419 m long accelerates a ball of mass 191 kg through a quarter circle the ball leaves the
starting from rest a basketball rolls from the top to the bottom of a hill reaching a translational speed of 52 ms
a small galvanometer coil of resistance r 20 and full-scale deflection at 1 ma is connected in series with a 4980
a woman with a package in her hand is riding in a hot air balloon which is climbing at a constant speed of 80 ms
write balanced molecular total ionic and net ionic equations for the reaction of aqueous copper ii sulfate and aqueous
a rock is thrown vertically upward with an initial speed of 100 fts at the same instant another rock is thrown
an aerosol can has an internal pressure of 385atm at 25 degrees celsius what temperature is required to raise the
helium neon laser light has a wavelength in air of 6328 nm what is the energy of a single photon in the
a hot-air balloon has a volume of 875l what is the original temperature of the balloon if its volume changes to 955l
the drive propeller of a ship starts from rest and accelerates at 310 x 10-3 rads2 for 260 x 103 s for the next 130 x
a ball of mass 110 kg moving with speed of 20 ms hits a wall and bounces back with the same speed in the opposite
calculate the molarity of a solution made by dissolving 0140 mol na2so4 in enough water to form exactly 800ml of
a 2 c negative charge is attracted to a large well-anchored positive charge how much kinetic energy does the negatively
write a balanced chemical equation showing the formation of the salt na3po4 from the reaction of the appropriate strong
the metal plates of a tv tube are parallel and 12 mm apart the potential difference between them is 12 kva find the
1 what are the sources of crude oil and some of its components2 why is cracking an important technological process3