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the metal aluminum is made commercially from al2o3 what weight of al goes 100kg of this metal oxide
mary beth uses a torque feeler that consists of a meter stick held at the 0 cm end with a weight danglig from various
a 200 kg block is placed against a spring on a frictionless 26deg incline the spring whose spring constant is 198ncm is
determine whether the following are acids or bases c5h5n ch3cooh c6h5sh and
waves travel along a 100-m length of string with a mass of 55 g which is held taut by a tension of 75 n what is the
calculate the delta h reaction for the combustion of glucose c6h12o6 using delta hf knot values calculate the delta hf
a target glider whose mass m2 is 370 g is at rest on an air track a distance d 53 cm from the end of the track a
a proton moves through a magnetic field at 315 of the speed of light at a location where the field has a magnitude of
nitrogen gas when combined with hydrogen gas forms ammonia gas according to the following equation n2g 3h2g 2nh3g
a charged particle is injected at 261 ms into a 00719-t uniform magnetic magnetic field perpendicularly to the field
calculate the molar gibbs free energy change for the phosporylation of glucose by atp to produce glucose-6-phosphate
an electron enters a region of space containing a uniform 00000199-t magnetic field its speed is 199 ms and it enters
a bar magnet is oriented with its magnetic dipole moment at 385deg to the direction of a 00145-t magnetic field causing
estimate the work done by the force in displacing a particle from x 10 m to x 35 m the curve is given by f ax2 with
what is the standard reaction enthalpy for which the equilibrium constant is doubled when the temperature is increased
each second 1150 m3 of water passes over a waterfall 95 m high three-fourths of the kinetic energy gained by the water
the intensity of the sound wave from a jet airplane as it is taking off is 85 wm2 at a distance of 40 m what is the
a 50 kg bundle starts up a 30deg incline with 128 j of kinetic energy how far will it slide up the plane if the
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
a transverse wave on a string is described by the equation yx t 229 cm sin107 radst 18 radsxa what is the maximum
what is the neutralization reaction for each of the following balance the equations ie write it outa hiaq naohaq --gtb
a flight attendant wants to change the temperature of the air in the cabin from 180deg c to 212deg c without changing
a cylinder in a car engine takes vi 450 10-2 m3 of air into the chamber at 30deg c and at atmospheric pressure the
a uniform ladder of length l and weight w is leaning against a vertical wall the coefficient of static friction between
a disk-shaped merry-go-round of radius 299 and mass 170 rotates freely with an angular speed of 0623 a 593 person