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a 855-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity
sulfur dioxide is produced in enormous amounts for sulfuric acid production it melts at -73 deg celsius and boils at
fish produce glycerol to survive the freezing waters of the arctic determine the degree to which the freezing point of
a flask contains 300ml of 012m phosphate buffer that has a ph of 72 what volume of 02m hcl should be added to drop the
what is the ph of a solution made by adding 20g of potassium acetate to 100 ml of distilled
a light ray is incident on the outer surface of the lucite at an angle of 437deg with the normal find the angle the
a 240g- mass is attached to a spring of constant k56 nm and set into oscillation with amplitude 25 cm determine the
an asteroid is discovered to have a tiny moon that orbits it in a circular path at a distance of 115 km and with a
a cylindrical tube 155 cm high and 35 cm in diameter is used to collect blood samples how many cubic decimeters dm3 of
a certain substance has a heat vaporization of 4474 kjmol at what kelvin temperature will the vapor pressure be 600
consider the sun to be at the origin of an xy-coordinate system a telescope spots an asteroid in the xy-plane at a
a 202 g piece of solid iron fes is heated to 661 degrees celsius and is dropped into a 500 g of water at 324 degrees
the middle c string on a piano is under a tension of 908 n the period and wavelength of a wave on this string are 382
a toy cannon uses a spring to project a 528 g soft rubber ball the spring is originally compressed by 506 cm and has a
a compound microscope has the objective and eyepiece mounted in a tube that is 180 cm long the focal length of the
a compound microscope has an objective lens with a focal length of 20 cm and an eyepiece with a focal length of 59 cm
a person with a near-point distance of 25 cm finds that a magnifying glass gives an angular magnification that is 15
a loudspeaker in a parked car is producing sound whose frequency is 20930 hz a healthy young person with normal hearing
the largest of the great lakes is lake superior which as a volume of 12230 km3 what is this volume in litersa 1223
when an earthquake occurs two types of sound waves are generated and travel through the earth the primary or p wave has
consider the nacl molecule for which the moment of inertia is 130 x 10-45 kgmiddotm2 if infrared light with a
a 400 kg mass is connected to a spring with a spring constant of 900 nm the velocity is given by the expression vt 800
175 l of liquid nitrogen density 808 gml vaporizes into gaseous nitrogen density 115gl in a room of size 10m x 10m x
a light string is wrapped around a 0160-kg hollow 0080-m-radius hoop the hoop is released from rest and the fee end of
a toy cannon uses a spring to project a 527 g soft rubber ball the spring is originally compressed by 490 cm and has a