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a 780-g bullet moving at 480 ms penetrates a tree trunk to a depth of 60 cma use work and energy considerations to find
the volume of fluorine gas required to react with 267 g of calcium bromide to form calcium fluoride and bromine at 41
calculate h0rxn for the following reaction after it is properly balanced with the smallest whole-number coefficients
explain why a compound with a phosphate group whose free energy of hydrolysis is more negative can transfer phosphate
two point charges q132 nc and q225 nc are located at the points mx-3m y0 and nx1my2m respectively how much work must be
how are vapor pressure and boiling point of a liquid related to each other what does intermolecular attraction have to
a bicycle wheel has a diameter of644cm and a mass of190kg assume that the wheel is a hoop with all of the mass
the moons diameter is 348 x 10 6 m and its mean distance from the earth is 385 x 10 8 m the moon is being photographed
a large grinding wheel in the shape of a solid cylinder of radius 0330 m is free to rotate on a frictionless vertical
if 480 g of o2 and 44 g of co2 are placed in a 100 l container at 21 degrees c what is the pressure of the mixture of
the bond dissociation energy of h2 and cl2 are 436 and 242 kjmol respectively the pauling electronegativity of h and cl
a 2-m3 vessel contains air at 40oc and 236 kpa the vessel is fed with fresh air until the air inside the vessel reaches
magnesium reacts with sulfuric acid according to the following equation mg s h2so4 aq ---gt mgso4aq h2 g how many
jane is standing on the platform waiting for the train the train approaching the platform from the north at 20 ms blows
what is the change in internal energy in j of a system that absorbs 0603 kj of heat from its surroundings and has 0903
a particle with charge 640x10-19 c travels in a circular orbit with radius 468 mm due to the force exerted on it by a
a volume of 485 ml of argon at 450degc and 100 atm is combined with 210 ml of xenon at 237degc and 391 atm in a new
thermodynamic equilibrium constant k for liquid-gas partitioning is a ratio of the analyte concentration in liquid
1300-l rigid tank contains 16 kg of refrigerant-134a vapor at 320 kpa the refrigerant is cooled until the temperature
a solution transmittance is 35 at 260nm what will be solution absorbance if you dilute 250 ml of the solution to
sodium ions na move at 0794 ms through a bloodstream in the arm of a person standing near a large magnet the magnetic
calculate the ionic strength of 100mm solution of mg3po42 in 10mm acetic
a rabbit runs in a garden such that the x- and y- components of its displacement as function of times are given by xt
a sample of gas has a mass of 500 mg and occupies a volume of 413 ml at 23ordmc and 745 torr what is the molecular
an automobile has a vertical radio antenna 100 m long the automobile travels at 560 kmh on a horizontal road where