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a 160 pound pilot of an airplane executes a constant speedloop-the-loop maneuver in a vertical plane the speed of
if a solution is made by mixing 200ml of 04m nach3coo with 30ml of 04m ch3cooh calculate the ph for acetic acid
two different simple harmonic oscillators have the samenatural frequency f800 hz when they are on the surface of
consider the titration of 300 ml of 010m hclo ka50x10-5 with 0095m koh solution determine the ph atc total of 170ml of
a weightless spring of force constant 250 ncm is 150 cm long when nothing is attached to it it is now used to pull
two flasks are connected with a stopclock the first flask has a volume of 5 liters and contains nitrogen gas at a
a crate on the floorhas an applied force 11 degrees below horizontal of 815 newtonsthe crate moves with constant
a ground state hydrogen atom n1 absorbs a nm photon what is the new value of n 2 the excited state atom drops down to
an ideal gas at 145 degc and a pressure of 110 x 105pa occupies a volume of 417 m3a how many moles of gas are presentb
combustion of propane in the presence of oxygen yields carbon dioxide and water the unbalanced equation isc3h8 g o2 g
consider a simple transformer that has a 100-turn primary coil and a 1000-turn secndary coil the primary is connected
a 750kg shell at rest explodes into two fragments one with amass of 300kg and the other with a mass of 450kgif the
an ir spectrum will be run on the product from the 1-butanol reaction to give 1-bromobutane what stretches in the ir
a descent vehicle landing on maes has a vertical velocitytoward the surface of mars of 55 ms at the same time ithas a
a standing wave on a tight string experiment is set up in thelaboratory the string is stretched between two posts that
part a is the ratio of volume over temperature in kelvin for each data point in a graph of temp vs volume a constant
a 25 kg mass is at rest hanging vertically attached to aspring that has a spring constant k 3300 nm this mass isstruck
a hydrogen molecule consists of two hydrogen atoms whose totalmass is 53 10 -26 kg and whose moment of inertiaabout an
at constant volume the heat of combustion of a particular compound is -36430 kjmol when 1231 g of this compound molar
a block of unknown mass is attached to a spring with a springconstant of 600 nm and undergoessimple harmonic motion
an 800-gram sample of a gas was heated from 25 degc to 225 degc during this process 346 j of work was done by the
if you have 4300 ml of water at 2500 degc and add 1200 ml of water at 9500 degc what is the final temperature of the
if the heat of combustion for a specific compound is -12100 kjmol and its molar mass is 4697 gmol how many grams of
the brightest star in the night skyis sirius which is at a distance of 830times1016 mwhen we look at this star how far
a researcher studying the nutritional value of a new candy places a 490-gram sample of the candy inside a bomb