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four resistors 10 ohms 16 ohms 22 ohms and 38 ohms are in parallela find the equivalent resistanceb find the current
compound has a molar mass of 2016 gmol how many moles of compound are found in 503kg of sample dont forget significant
a football kicker can give the ball an initial speed of 27 ms he is 53 m from the goalpost which has a crossbar 309 m
a steam engine operates between 138 c and 38 c what is the minimum amount of heat tahat must be withdrawn from the hot
a particle moving at 91 ms in the positive x direction is given an acceleration of 34 ms2 in the positive y direction
benzene c6h6 is converted to cyclohexane c6h12 by direct addition of hydrogen gas h2 the plant produces 100 ib-moleshr
an astronaut on the planet zircon tosses a rock horizontally with a speed of 745 ms the rock falls through a vertical
a draw the crystal-field energy-level diagrams and show the placement of d electrons for the following crf6-3b indicate
in denver children bring their old jack-o-lanterns to the top of a tower and compete for accuracy in hitting a target
a new solid niii octahedral complex has been synthesized containing only chloride and ammonia as ligands when 964x10-4
a diver runs horizontally off the end of a 3 m high diving board at 6 msa how long does it take for the diver to hit
a ball is thrown off a 22 m high cliff at 9 ms 50o above the horizontala how long does it take to hit the
a 048 mg sample of sulfur-35 has an activity of 204 ci what is the decay constant of sulfur-35 in
a 0700-kg ball is on the end of a rope that is 090 m in length the ball and rope are attached to a pole and the entire
a layer of peat beneath the glacial sediments of the last ice age has a carbon-14carbon-12 ratio that is 214 of that
the solubility product for cuis is 11x10-12 calculate the value of the cell potential for the following
a two-slit pattern is viewed on a screen 128 m from the slits if the two third-order maxima are 396 cm apart what is
during a portion of the carnot cycle a dilute gas of diatomic nitrogen is compressed slowly at constant temperature t
a jet plane lands with a speed of 88 ms and can accelerate at a maximum rate of -440 ms2 as it comes to resta from the
a flywheel of mass 187 kg has an effective radius of 063 m assume the mass is concentrated along a circumference
a gaseous compound containing carbon and hydrogen was analyzed and found to consist of 8365 carbon by mass at 139
a puck of mass m 190 kg slides in a circle of radius r 230 cm on a frictionless table while attached to a hanging
how do i express quantities using significant figures to imply errors an example question is 1989 -
heptane c7h16 and octane form an ideal solution at 40 degrees c thevapor pressure of pure heptane is 0522 atm and the
as a scuba diver descends under water the pressure increases at a total air pressure of 270 atm and a temperature of