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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
assume that the kinetic energy of a 1600 car moving at 125 is converted entirely into heat how many calories of heat
the outfielder throws a baseball with an initial speed of 10 ms an infielder catches the ball at the level 1 m lower
a meter stick balances at the 500 cm mark if a mass of 500 g is placed at the 900-cm mark the stick balances at the 613
describe the technique you would use to deteremine the density of a 5 gram sample of gasonline or granular sugar at 20
the nucleus of an atom is on the order of 10-15 m in diameter for an electron to be confined to a nucleus its de
nutritional tables give the potassium content of a standard apple 3 appleslb as 159 mg how many grams of potassium are
x-rays having an energy of 280 kev undergo compton scattering from a target the scattered rays are detected at 360deg
what mass of c2h5oh should be added to 630 kg of the paraffin in formulating the mixture if the vapor pressure of
in coulomb scattering of 750mev protons by a target of 7-li what is the energy of the elastically scattered protons at
a person suffering from hyponatremia has a sodium ion concentration in the blood of 0112 m and a total blood volume of
junior has mass m and stands on a frictionless turntable the turntableis a uniform disk of radius r and mass m
glucose makes up about 010 by mass of human blood how do you calculate the molalitywhat further information would you
a 200 kg mass is connected to a spring with a spring constant of 600 nm the displacement is given by the expression xt