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what is the age of a rock whose argon 40 potassium 40 ratio is 155 the half life of potassium 40 is 128 x 109
an ordinary drinking glass is filled to the brim with water 2450 ml at 205degc and placed on the sunny pool deck for a
in fresh water sound travel at a speed of 1460ms in the cold air sound travel in speed of 331ms suppose that an
calculate the vapor pressure of ethanol at 30c in mm hg bp of ethanol 76
mercury has mp -389c a molar heat capacity of 279 jkmol for the liquid and 282 jkmol for the solid and delta hfusion
a solution is prepared by mixing 500 ml of 018 m pbno32 with 500 ml of 10 m kcl calculate the concentrations of pb2 and
a rifle is test fired into a ballistic pendulum the bullet embeds itself in the block of mass 055kg that makes up the
a derive the equations used in this problem based on forces and the experiment on specific gravity a cylinder of solid
trichloroethane c2h3cl3 is the active ingredient in aerosols that claim to stain-proof mens ties trichloroethane has a
1 a solid disk of radius 160 m and mass 230 kg rolls without slipping to the bottom of an inclined plane if the angular
acetone a common laboratory solvent has deltahvap 291kjmol and a normal boiling point of 561 c at what temperature in
a thin cable 2m long with a mass of 100g is fixed at both ends its tension is 20n a standing wave is excited on the
provide the names for the tertiary alcohols with the chemical formula c6h14o that have a 4-carbon chain there are three
an open-end manometer containing mercury was connected to a vessel holding a gas at a pressure of 840 torr the
the gauge pressure at the bottom of a reservoir is 50 times what it is at a depth of 21 m how deep is the
what is the vapor pressure of sicl4in mm hg at 345c the vapor pressure of sicl4 is 100mm hg at 54c and delta hvap 302
a hydraulic jack is made with a small piston 11 cm in diameter that is used to move a large piston 53 cm in diameter if
how much energy in kilojoules is released when 159g of steam at 1295c is condensed to give liquid water at 685c the
i need to construct a microstate table for a np3 i know that the of microstates is going to be 633 20 microstates i am
part awhat is the cell potential at 25 degrees c for the following galvanic cell pb s pb2 10m cu2 12x10-4 m cu spart
if someone could provide a mnemonic or a simple way to write this out it would be extremely helpful this deals with
a block of mass mb is attached to one end of a spring and is sliding on a horizontal frictionless surface the other end