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in exercise physiology studies it is sometimes important to determine the location of a persons center of mass this can
a certain gas is present in a 130 l cylinder at 30 atm pressure if the pressure is increased to 60 atm the volume of
some good estimates about the human body can be made if it isassumed that we are made mostly of water the mass of a
a monkey is chained to a stake in the ground the stake is 300m from a vertical pole and the chain is 34m long how high
q1 consider an infinitely large non-conducting sheet in the xy-plane with uniform charge density sigma write down
a beam of 861 mev protons is incident on a target of 2713al those protons that collide produce the reaction shown below
a football is kicked at 45degrees and travels 82m before hittingthe grounda what is its initial velocityb how long is
determine the molality of a solution of ethanol dissolved in methanol for which the mole fraction of ethanol is
a vertical-axis capstan drum 60 cm in diameter was used to pull inthe anchor chain of a whaler a century ago six
a quantity of n2 occupies a volume of 15l at 300k and 12atm the gas expands to a volume of 31l as the result of a
a sound wave from a siren has an intensity of 985 wm2 at a certain point and a second sound wave from a nearby
a group of hikers hears an echo 280 s after shouting how far away is the mountain that reflected the sound wave assume
if i have 500 g of mgoh2 what volume of 01234 m hcl would i require to completely neutralize the magnesium
a dolphin located in sea water at a temperature of 25degc emits a sound directed toward the bottom of the ocean 160 m
a mule uses a rope to pull a box that weighs 30 x 10 2 n across a level surface with constant velocity the rope makes
a mixture of 131 grams of zn and 220 g i2 is reacted to completion in a closed evacuated container what are the
a spring with an unstrained length of 0071 m and a spring constant of 15 nm hangs vertically downward from the ceiling
0330 mol of hi are introduced to an evacuated 300l reaction vessel at a specific temperaturethe rquilibrium constant is
a 30-kg wheel in the form of a solid disk rolls along a horizontal surface with a speed of 50 ms what is the total
a meter stick moving in a direction parallel to its length appears to be only 40cm long to an observer what is the
2no g 3f2g yields 2nof3g suppose 020 mol of no and 030 mol of f2 are added to a 50-l container if x mol of nof3 is
light of wavelength 610nm is incident on a slit of width 20mm and in interference pattern is produced on a screen that
express the molecular weight of k2cr2o7 with the correct number of significant figures and find its
a carboxylic acid is soluble in organic solvent but its carboxylate anion is not explain why and what it should be