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a disk of mass m1 and radius r1 is rotating about the center around a thin axle with an initial angular velocity of
a source of electromagnetic waves radiates power uniformly in every direction at a single frequency at a distance of
a helium-neon laser of the type frequently found in physics laboratories has a beam power of 700 mw at a wavelength of
a body of unknown mass is attached to an ideal spring with force constant 120 nm it is found to vibrate with a
the flywheel of a gasoline engine is needed to give up 500 joules of kinetic energy while its angular velocity
compute the standard enthalpy of formation of gaseous diborane b2h6 using the following thermo chemical information4b s
for each stereoisomer depict the structure be sure to denote the stereochemistry via wedge-and-dash bondsa
a 20ml volume of previously boiled deionized water is added to the erlenmeyer flask to prepare the sample for titration
a student is probing a bacterium under the microscope the e coli bacterial cell has a mass of 180 where a femtogram is
when a tank of oxygen gas has a pressure of 43 atmospheres at room temperature 25 degrees c during a fire it was
joe found a mineral sample that merely contained barium carbonate and calcium carbonate baco3 and caco3 a 594 gram
a 10 grams of a highly volatile organic liquid containing only hydrogen along with carbon was placed in a 250 ml flask
find out the density of sulfur trifluoride gas at room temperature and 1 atmosphere pressure1 00022 gramscm32 00057
if a tank of oxygen gas has a pressure of 33 atmospheres at room temperature 25 degrees c during a fire it was
study boyles experiment some nitrogen gas at 1 atmosphere pressure is intent in the left hand side of a j tube when the
when solid lithium metal and diatomic nitrogen gas react spontaneously provide the balanced chemical equation including
explain which of the five cobalt complexes conh35xy where x is one of the five ligands br- cl- f- h2o or nh3 and y is
a give two instances each from metals and nonmetals to support these generalizationsb explain what connection is there
while metal oxides react with water the oxygen usually ends up as the hydroxide ion separate from the metal on the
with any reaction supplies detailed mechanism and explain kinetic and thermodynamic control and please provide ir
1 the rate velocity of a reaction is-a the free energy dissimilarity between products and reactantsb the time it takes
the cliffs of dover are chalk cliffs found along the english channel near dover england the scarborough bluffs are
the absorption spectrum of a solution depicts one peak with maximum absorbance at 528nm compute the energy which is the
1 h2co3 carbonic acid is a polyatomic acid state the equations showing the successive dissociations2 for a 06m nh41
assume 846 mg of a pure diprotic acid this means that the acid is capable of donating two hydrogen ions or protons was