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one way to experimentally measure the heat capacity of a styrofoam cup calorimeter would be to melt a known mass of ice
a diffraction grating is made up of slits of width 360 nm withseparation 1300 nm the grating is illuminated by
a 10 kg box slides 40 m down a frictionless ramp and collideswith a spring as shown in the figure the spring constant
you are an astronaut in the space shuttle pursuing a satellitein need of repair you are in a circular orbit of the same
how would prepare 425g of an aqueous solution containing 014 by mass of sodium acetate nac2h3o2 what is the
at a position in the philippines earths magnetic field of39 microt is horizontal and directeddue north suppose the net
a student on a piano stool rotates freely with an angularspeed of 307 revs the student holds a 139 kg mass in
a student performing a lab experiment obtained 2120 g of alum for 480 g of al metal a calculate theoretical yield
a horizontal force of magnitude 364 n pushes a block of mass381 kg across a floor where the coefficient of kinetic
calculate the molarity of a solution of acetic acid made by dissolving 1900 ml of glacial acetic acid at 25 c in enough
a 72 kg man in a 50 kg chair tilts back so that all the weight isbalanced on two legs of the chair assume that each leg
consider a spacecraft in an elliptical orbit around the earthat the perigee it is 400 km away from the earths surface
tarzan whose mass is 800 kg swings from a 300-m vine thatis horizontal when he starts at the bottom of his arc he picks
a coin is located 200 cm to the left of a converging lensf16 cm a second identical lens is placed to the right ofthe
a horizontal spring with a 2 kg mass attached and a springconstant k300 nm is compressed 10 cm from its equilibrium
water flows over a section of niagara falls at the rate of129 x10e6 kgs and falls 54m how much power is generated bythe
a sports car picking up speed passes between two markers ina time of 41 seconds the markers are separated by 120 meters
a person takes a trip driving with a constant speed of895kmh except for a 22 min rest stop if the persons averagespeed
the gauge pressure in each of the four tires of an automobile is240 kpa if each tire has a foot-print of 200 cm2
a bottle has a mass of 3500 g when empty and 9844 g when filled with water when filled with another fluid the mass is
a 76 kgbicyclist rides his 103 kg bicyclewith a speed of 153 msa how much work must be done by the brakes tobring the
benzoic acid is much stronger than the weak acid phenol consequently benzoic acid reacts with the weak base bicarbonate
a small car m1 is pushing a larger truck m2 thathas a dead battery the driver steps on the accelerator andpushes the
an elemental analysis of an organic compound showed the following results c375 h125 o500 a 08 g of that compound was
the diet of a 60 kg person provides 12000 kj daily ifthis amount of energy were added to 60 kg of water by how much