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the maximum angular magnification of a magnifying glass is 120 when a person uses it who has a near point that is 250
it is stated that more than one unit cell can be chosen for a structure if they represent the same structure however
a man is trying to get his car out of mud on the shoulder of a road he ties one end of a rope tightly around the front
a 10kg baby is perched at the rim of a 40kg disk the disk rotates freely in a horizontal plane at 1 revs the baby
the pilot of an aircraft wishes to fly due west in a 500 kmh wind blowing toward the south the speed of the aircraft
a charged ion has a mass of 25x10-26 kg and charge 125x10-19 c after being accelerated by 250 v it enters a b-field of
although there are a lot of ways to detect planets can someone further expand on the techniques and methods used to
a velocity selector is connected to a mass spectrometer the electric field in the velocity selector is 950 vm calculate
a 200 meter long wire loops carrying a current of 200 a is in the shape of an equilateral triangle if the loop is
a car goes around a curve on a road that is banked at an angle of 307deg even though the road is slick the car will
some bacteria are propelled by biological motors that spin hair-like flagella a typical bacterial motor turning at a
a string of length l which is clamped at both ends and has a tension t is pulled aside a distance h at its center and
different arrangements of the circles can lead to different packing efficiencies arrange 9 pennies or circles such that
the rate constant k for a given reaction was determined at a number of temperatures a graph of log k versus the
when talking about hydroxyquinone bht and bha as radical inhibhitars they are commonly additives to foods such as
1 tungsten crystallizes in a cubic unit cell with an esge length of 3165 angrstromsand with a tungsten atom on each of
determine the density of pb if the length of one of the sides of the cubic unit cell s is 49505 angrstroms and pb packs
write an equation that represents the reaction of 2 ethanolic pbp solution with 4-methylcyclohexane and name the
a 1000 mg sample of a common organic compound containing c h and s was burned in oxygen forming 2835 mg of co2 and 484
a how many atoms are present in a 170-m length of 20 gauge copper wire 20 gauge wire has a diameter of 003196 in and
calculate the centripetal force exerted on the earth by the sun assume that the period of revolution for the earth is
the average atomic mass recorded on the periodic table for cobalt is 58933 u this indicates that the most abundant
high voltage power lines are made of aluminum and often start with an electric potential of around half a million volts
a certain lightbulb is rated at 1750 w when operating at an rms voltage of 120 va what is the peak voltage applied