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10 gram of dry ice solid co2 is located in a 20times104 cm3 container then all the air is quickly pumped out and the
a find the displacement amplitude for a sound wave having a frequency of 100hz and a pressure amplitude of 10-4 atmb
an ambulance driver traveling at 300 ms is equal to 671 mph honks his horns he sees a motorist ahead on the highway
a mass of 004 kg can glide freely on an air track it is attached to a spring k144 nm and oscillates back and forth with
how fast does water flow from a hole at the bottom of a very wide 27 meter deep storage tank filled with water neglect
if the earth had no atmosphere and were a perfectly smooth sphere of radius 638 x 106 meter and mass 598 x 1024
a rocket is used to place a synchronous satellite in orbit about the earth calculate the speed of the satellite in
an electric fan is rotating about a fixed axis with an initial angular velocity of 0260 revs the angular acceleration
consider the titration of 1000 ml of 0200 m acetic acid ka 18 10-5 by 0100 m koh calculate the ph of the resulting
a performer seated on a trapeze is swinging back and forth with a period of 810 sec if she stands up thus raising the
the motor of a table saw is rotating 3450 revmin a pulley attached to the motor shaft drives a second puller of half
explain a particular 12v battery is based on a reaction having a standard cell potential e0192 v define what happens
at a recent rock concert a db meter registered 122 db when placed 220 m in front of a loudspeaker on the stagea
a 061-kilogram metal sphere oscillates at the end of a vertical spring as the spring stretches from 011 to 024 meter
define the mass of silver deposited on a spoon during electroplating is 904mg explain how much electric charge passed
a beam of monochromatic light is diffracted by a slit of width 0630 millimeter the diffraction pattern forms on a wall
explain if a buffer solution is 0120 m in a weak acid ka 35 times 10-5 and 0500 m in its conjugate base define what is
suppose the temperature of 470 l of ideal gas drops from 385 k to 275 ka if the volume remains fix and the initial
while active metals such as sodium are exposed to air they quickly form a coating of metal oxide the balanced equation
a 200 gram 40-centimeter-diameter turn table rotates on frictionless bearings at 60 rpm a 20 gram block sits at the
the nh3 is a weak base kb 18 times 10-5 and so the salt nh4cl acts as a weak acid explain what is the ph of a solution
this cart rolls at 4 ms toward a stationary 1kilogram cartfind maximum compression of the spring during the
explain would you expect the successive ionization energies to increase or decrease with the removal of each electron
two pieces of steel wire with identical cross sections have lengths of l and 4l each of the wires is fixed at both ends