The density of air under standard laboratory conditions is
The density of air under standard laboratory conditions is 1.29{\rm kg}/{\rm m}^{3} , and about 20.0\% of that air consists of oxygen. Typically, people breathe about .5 L of air per breath.How many grams of oxygen does a person breathe in a day?
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on a hot summer day a young girl swings on a rope above the local swimming hole figure 1 when she lets go of the rope
in a game of basketball a forward makes a bounce pass to the center the ball is thrown with an initial speed of 43 at
a particle leaves the origin with an initial velocity v24 msx and moves with constant acceleration a-19 ms2x 32 ms2y
two 150-v batteriesmdashwith their positive terminals in the same directionmdashare inserted in series into the barrel
the density of air under standard laboratory conditions is 129rm kgrm m3 and about 200 of that air consists of oxygen
calculate the force required to pull a copper ball of radius 300 cm upward through a fluid at the constant speed 600
the electric field intensity between two parallel plates separated by 25mm is 8000 nc how much work is done by the
the place you get your hair cut has two nearly parallel mirrors 800apart as you sit in the chair your head is 250 from
a source of radio waves is emitted from the center point of our galaxy 19 x 104 light years away nine picowatts of
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