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your task in physics laboratory is tomake a microscope from two lenses one lens has a focal length of 24 cm the other12
a state trooper chases a speeder along astraight stretch of road both vehicles move at 155 kmh the siren on the
assuming complete dissociation of the solute how many grams of must be added to 275 of water to produce a solution that
platinum has a face-centered cubic crystal structure and a density of 215gcm3 what is the radius of the platinum
a 2 kg book rests on a frictionless horizontal surface acord attatched to the book passes over a pulley whose diameter
can anyone suggest a simple method for the separation of phenol from a solution which contains both phenol and
a rectangular prism of plastic rho600kgm3measuring 2cm x 2cm x 4cm is dropped into a bucket of gasolinerho700 kgm3 how
siler metal crystalizes in a face-centered cubic lattice with l as the length of one edge of the unit cube the
a solution of 750g of benzene and 750g of toluene has a total vapor pressure of 809mmhg at 303k another solution of
a hollow sphere of inner radius 72 cm and outer radius92 cm floats half-submerged in a liquid of density 900kgm3 what
the atmic planes in a graphite crystal are separated by 335pm at what angle wuld you find the first ordern1 diffraction
how many liters of oxygen gas at 153 degrees celsius and 0820atm can be produced by the decomposition of 224g of solid
the magnitude of the electrostatic force between two identicalions that are separated by a distance of 50x10 -10 m is
use lewis symbols to show the sharing of electrons between a silicon atom and hydrogen atoms to form a molecule in
the fresh water behind a reservoir dam is 150 m deepa horizontal pipe 500 cm in diameter passes through the dam95 m
a massless spring with spring constant 20 nm hangsvertically a body of mass 03 kg is attached to its freeend and then
a person weighing 500 n climbs a ladder leaning against awall the ladder weighs 100 n and is 200 m long and is set at
an f-18 jet fighter flies directly overhead at a height of 18000mat 53 the speed of soundpart a make a diagram that
sodium carbonate rm na2co3 is used to neutralize the sulfuric acid spill how many kilograms of sodium carbonate must be
you are riding a bicycle at 150 ms toward a woman who is holdinga screaming baby you note that you hear the scream at a
what is the number of grams of nah2po4 which are needed to react with 4374 ml of 0285 m naoh nah2po4 s 2naohaq ----gt
the circuit in the drawing contains two resistors and twocapacitors that are connected to a battery via a switch when
1250 ml of 0307 m na2co3 are reacted with excess hcl the co2 g product is collected in a container of 630 ml volume at
if the electric potential is different from zero in some region of space can the electric field be zero in that same
a spaceship is moving toward earth at 6c it fires arocket away from the earth at 4c relative to the spaceship what is