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why would you put a metal sample in a test tube and then in boiling water to heat it instead of putting the metal
a 75kg man swings from a vine at an angle of 35 degrees with thevertical he grabs the vine with an initial speed of 25
what percentage by volume is needed of ethylene gylcol in an ethylene gylcol-water mixture to keep the coolant in your
a 00575 kg ball is dropped from a height of 6 meters if theball hits the ground and rebounds to a height of 5 meters
a cylindrical brass sleeve is to be shrink-fitted over a brassshaft whose diameter is 3214 cm at0degc the diameter of
the henrys law constant for co2 in water is 128 mpa at standard conditions for standard atmospheric conditions what is
at 2000degc 50times10-3 mol co2 is introduced into a 10 l container and the following reaction comes to
two spheres are launched horizontally from a082-m-high table sphere a is launched with an initial speed of423 ms sphere
a pendulum of the length l is suspended from the ceiling of an elevator when the elevator is at rest the period of the
a spark plug initiates combustion of gasoline in an automobile engine by producing a spark across a small gap between
why should the volume of standard base or acid needed to reach the equivalence point in a titration be more than 100
a rifle is aimed horizontally at a target 5616 m away the bullethits the target 265 cm below the aim pointwhat was the
a grey kangaroo can leap a distance of 1178 m on horizontalground what is the minimum take off speed for such a
astronauts on the moon set up a simple pendulum of the length 1 m and measured its period to be 493 s what is the
what is the ph of a solution of 075 m k2hpo4 potassium hydrogen phosphate phosphoric acid h3po4 has the following
on the apollo 14 mission to the moon astronaut alan shepard hit agojf ball with a 26 iron the acceleration due to
cyanogen is a gas which contains 462 c and 538 n by mass at a temperature of 25c and a pressure of 750 mm hg 150 g of
the concentration of copperii sulfate in one brand of soluble plant fertilizer is 0070 by weight if a 150 g sample of
a peregrine falcon in a tight circular turn can attain a centripetal acceleration 161 times the free-fall acceleration
r enantiomer of a chiral compound has a specific rotationof 152if a mixture of this coumpound and its enantiomer has a
a ball thrown horizontally at 2472 ms travels a horizontal distanceof 4951 m before hitting the ground from what height
zinc copper lead and mercury ions are toxic to atlantic salmon at concentrations of 642 x 10-2mm 716 x10-3mm 0965 mm
a supply plane needs to drop a package of food to scientists working on a glacier in greenland the plane flies 246 m
a generator uses a coil that has 160 turnsand a 050-t magnetic field the frequencyof this generator is 600 hz and its
calculate the molar concentration of propionic acid hc3h5o2 in solution if 1000 ml of a propionic acid solution is