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a 13 rm kg block and a23 rm kg block are attached toopposite ends of a light rope the rope hangs over a
a 0400 kg object is swung in a vertical circular path on a string0460 m long if its speed is360 ms at the top of the
if a certain gas occupies a volume of 20 l when the applied pressure is 10 atm find the pressure when the gas occupies
a photon of wavelength 091000 nm strikesa free electron that is initially at rest the photon is scattered straight
a chemistry graduate student is designing a pressure vessel for an experiment the vessel will contain gases at
a hno3 a strong acid is added to shift the ag2co3 equilibrium to the right explain why shift occurs b what would have
a if a diverging lens of focal length -690 cm is then placed 290cm from the first lens on the opposite side of the lens
nh3 is a weak base naoh is a strong base what would happen if naoh were added to cuso4 solution instead of
a student mixes 886g of water at 743 degree celsius with 579g of water at 248 degree celsius in an insulated flaskwhat
given that one mole of naoh reacts exactly with one mole of potassium hydrogen phthalate write the chemical reaction
during an apollo lunar landing mission the command modulecontinued to orbit the moon at an altitude of about 100 km how
a sample of a radioactive substance used in detecting skin cancer produced 592 counts in one minute at the beginning of
if the ladder is just on the verge of slipping when the firefighter is 844 m up from the bot- tom what is the
consider the titration of 300 ml of 010m hclo ka50x10-5 with 0095m koh solution determine the ph ata initially before
write equations that describe the reaction mechanism for the acid hydrolysis of each of the following compoundsb acetic
distance between 2 slits is 0500 mm and distance to screen is 250m find spacing between first-order and second-order
a 01236-g sample of an unknown monoprotic acid was dissolved in 258 ml of water and titrated with 00680 m naoh solution
a weather balloon filled with helium gas has a volume of285 m3 and pressure 14 x 105 pa at the earths surface where
some ions do not have a corresponding neutral atom that has the same e- config for each of the followings ions identify
while working in a research lab you find that it takes396 j of heat to increase the temperatureof 099 kg of a material
the ph of a bicarbonate-carbonic acid buffer is 780 calculate the ratio of the concentration of carbonic acid h2co3 to
at t0 a wheel rotating about a fixed axis at a constant angular acceleration has an angular velocity of 2 radstwo
draw the condensed structural formula of benzyl acetate and circle the acetic acid part and the phenyl
calculate the ph after 0010 mol gaseous hcl is added to 2500 ml of each of the following buffered solutionsa 0050 m nh3
using the factor labeling method solve there are 12 norps in 29 bargs 42 norps in 57 krips and 5821 krips in 118 flegs