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1 assume that both 75 percent of the hydrogen gas can be recovered from the hydride and complete combustion of the
1 how many trees are required to offset the carbon dioxide emissions from an individual who drives 15000 miles every
qualitatively speaking what is the difference between flux and intensity measurements what are the units of each in
monochromatic x rays are incident on a crystal for which the spacing of the atomic planes is 0442 the first-order
you are given a sample of f2 gas which is held at a pressure of 2 atm and a temperature of 110oc the volume occupied by
silver iodide is very insoluble in water a common method for increasing the solubility is to increase the temperature
a buffer is prepared by adding 250 ml of 012 m hclaq to 550 ml nach3co2aq what is the solubility of baf2 in this buffer
a factory worker moves a 300 crate a distance of 520 along a level floor at constant velocity by pushing horizontally
oxygen is composed of only one kind of atom and cant be separated into simpler substances what type of matter is
750 g of ammonium sulfate is placed in a 5000 ml flask and diluted volume1 what is the percent by mass concentration of
atoms such as sodium typically give line spectra as opposed to continuous spectra given that such spectra are due to
the femur is a bone in the leg whose minimum cross-sectional area is about 43 x 10-4 m2 a compressional force in excess
a small ball is attached to one end of a spring that has an unstrained length of 0152 m the spring is held by the other
the substance with the weakest interparticle forces intermolecular is the one with a boiling point ofa 100 deg cb 78
an automobile has a mass of 1840 kg and a velocity of 150 ms it makes a rear-end collision with a stationary car whose
ethyl acetate liquid flask with ethyl acetate with the top cover with aluminium paper with small whole in the top and
a 490 g bullet is fired horizontally at two blocks resting on a smooth tabletop as shown in the top figure the bullet
given the equation xeg 3f2g xef6s how many moles of fluorine f2 are used during the formation of 3 moles of xenon
a ball is rolling down a ramp when it passes a particular point you determine that the ball is traveling at an angular
a 500 kg snowboarder has an initial velocity of 200 ms at the top of a 26o incline after sliding down the 100m incline
a string is wrapped many times around a pulley and is connected to a block with mb 5711 kg that is hanging vertically
a toy of mass 0155 is undergoing simple harmonic motion shm on the end of a horizontal spring with force constant 295
scientists want to place a 44000 kg satellite in orbit around mars they plan to have the satellite orbit at a speed of
a pulley with a radius of 100 cm is mounted on an axle that passes through the center of the pulley the axle allows the
you are researching personal watercraft pwc safety these vehicles have a well known safety issue in which the rider