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a certain reaction with an activation energy of 165 kjmol was run at 485 k and again at 505 k what is the ratio of f at
in an l-r-c series circuit the rms voltage across the resistor is 283 v across the capacitor it is 882 v and across the
when 100 mol h2s was put into a 100 l vessel and heated to 1132 degrees celcius it gave an equilibrium mixture
a barefoot field-goal kicker imparts a speed of 49 ms to a football initially at rest if the football has a mass of 076
in a polymerization reaction of styrene with the concentration of 2 m in 2 liter cyclohexane solvent the polymerization
an aluminum wire having a cross-sectional area of 300 10-6 m2 carries a current of 42 a find the drift speed of the
tris base pka81 was dissolved in 5l of water to give the final concentration of 1 m how much does the ph change after
in a series l-r-c circuit the components have the following valuesl 215mh c 165uf and r 320 ohm the generator has an
name and give formulas of two acids that are strong electrolytes and one acid that is weak name and give formulas of
two 500 g block of wood are 20m apart on a frictionless table a 10g bullet is fired at 400 ms towards the blocks the
predict the products of each precipitation reaction balance the completed equation and then write the net ionic
as shown in the figure ball 1 with m1 400kg is connected through a mass less rod with ball 2 with m2 300kg the system
if a person is given benzene phenol is the chemical found during the elimination process how does this
a compound has two carboxyl groups and one amino group the pkas of the groups are 20 44 and 89 respectively a
a 50g dart rests up against a spring that has been compressed 0050 metersa if 125 j of work were required to compress
a 15 kg kitten jumps down from a 20 meter high fencea what is the kittens change in egb what will be the kittens speed
if hair grows at a rate of 24 cm per year then what is the rate of peptide bond synthesis peptide bonds per second that
when laser light of wavelenght 6338nm passes through a diffraction grating the first bright spot occurs at - 186
use the same values reported for efficiency of oxygen delivery with a cooperative protein but this time let n1 instead
the rate constant for a certain reaction is 460times10-3 s-1 if the initial reactant concentration was 0900 m what
a 1000 kg car is traveling at a constant speed of 30 msa how much energy is transferred to internal energy as the car
to prepare a fertilizer an engineer dilutes a stock solution of sulfuric acid by adding 247 l of 525 m acid to enough
find the electrical and gravitational forces between the proton and electron in a hydrogen atom which force holds it
the depth of a body of water can be found by emitting sound pulses at the surface and dectecting the pulses reflected
the treasure map in the figure gives the following directions to the buried treasure start at the old oak tree walk due