What must you do after making each entry in your fitness log?
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a. have your coach initial it to confirm that you've done your workout.
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b. e-mail your teacher right away.
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c. plan your next workout.
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d. enter it into a spreadsheet for your records.

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

The substances that are necessary for producing of certain hormones and that store and transport vitamins

Often called simply "velocity," this is the velocity of an object at a particular moment in time.