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a first-order reaction has rate constants of 46x10-2s-1 and 81x10-2s-1 at 0 degrees and 20 degrees c respectively what
sunlight strikes a piece of crown glass at an angle of incidence of 400o calculate the difference in the angle of
naturally occurring chlorine is composed of two isotopes 7576 cl-35 mass 349688 amu and 2424 cl-37 mass 369659 amu
a hollow spherical shell with mass 225 rolls without slipping down a 375 slope find the acceleration of the shell find
a laser beam enters a 185 cm thick glass window at an angle of 380deg from the normal the index of refraction of the
a light ray of 430 nm enters at an angle of incidence of 362o from air into a block of plastic its angle of
how many ml of 50 wt sodium hydroxide must be added to water to prepare 500 ml of a 0400 m solution of sodium hydroxide
a sealed cubical container 240 cm on a side contains three times avogadros number of molecules at a temperature of
if the internal ph of muscle cell is 680 what is the hpo42-h2po4- ratio in this cell the values are pk1212 pk2721 and
a styrofoam cup holding 122 g of hot water at 100 102degc cools to room temperature 210degc what is the change in
the average coefficient of volume expansion for carbon tetrachloride is 581 10-4 degc1 if a 565-gal steel container is
a thin transparent film has an index of refraction of 157 it consists of a flat plate with air on both sides of the
an ideal gas at 263degc and a pressure 180 105 pa is in a container having a volume of 100 l a determine the number of
the unit of denier is a way to characterize fibers defined as the weight in grams of a length of 9000 meters nylon 6
a 500 kg cannon fires a 40 kg projectile with a velocity of 500 ms relative to the ground what is the recoil speed of
a 1800 kg car traveling north at 70 kmh collides at an intersection with a 2000 kg car traveling west - at 57 kmh the
an ideal monatomic gas is allowed to expand quasi-statically and adiabatically from an initial volume vi 41 liter and
object a which has a mass m and a velocity v0 collides head-on with object b which has a mass 2m and a velocity 12v0
the boiling point of liquid nitrogen is 773 k at atmospheric pressure what is this temperature on the celsius
the mass of the blue dark puck in the figure below is 183 greater than the mass of the green light onea before
in the diagram below a block of mass m46 kg slides down a frictionless inclined plane and collides elastically with
a skyrocket explodes just as it reaches the top of its trajectory at a height 131 km above the ground the shrapnel
the density of gold is 19 times that of water if you take a gold crown weighing 30n and submerge it in water what will
a transformer consists of a 500 turn primary coil and a 2000 turn secondary coil if 120v is applied to the primary how
a 8 meter tennis racket is swung by a player with an arm length of 7m if the initial linear velocity of the tennis ball