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suppose you are a medieval knight attacking a castle with a cannon the ball leaves the cannon with a speed of 443 ms
two railroad cars each of mass 6500 kg and traveling 98 kmh in opposite directions collide head-on and come to rest
your extra large tube of insta-glucose contains 27024 g of glucose compute the number of atp molecules your patient can
a block with a mass of 15killogram is held stationary by a cord on a frictionless plane that is inclined at an angle
the malate dehydrogenase reaction state in the direction as it occurs in the citric acid cycle ismalate nad
to tighten a spark plug it is recommended that a torque of 136 nbullm be applied if a mechanic tightens the spark plug
when a ceiling fan rotating with an angular speed of 350 rads is turned off a frictional torque of 0257 nbullm slows it
an unknown mass is hung from a very light spring with a spring constant of 19 nm neglect the mass of the spring if the
a 155 kg mass vibrates in simple harmonic motion with a frequency of 90 hz it has a maximum displacement from
the number of radioactive nuclei present at the start of an experiment is 420 1015 the number present 23 days later
dolphins emit clicks of sound for echolocation and communication a marine biologist is monitoring a dolphin swimming in
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