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a car is parked on a cliff overlooking the ocean on an incline that makes an angle of 250deg below the horizontal the
the metal aluminum is made commercially from al2o3 what weight of al goes 100kg of this metal oxide
the power rating of a resistor is 0800 w the value of the resistor is 400 oa what is the maximum voltageb what is the
determine whether the following are acids or bases c5h5n ch3cooh c6h5sh and
a sample containing beryllium atomic mass 9 u aluminum 27 u and an unknown element is placed in a mass spectrometer the
starting from the front door of your ranch house you walk 500m due east to your windmill and then you turn around and
calculate the delta h reaction for the combustion of glucose c6h12o6 using delta hf knot values calculate the delta hf
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