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the mass of a pencil sitting on your desk about .25 meters from you is .006 kg. the mass of a typical teenager or young adult is 55 kg. what is the attractive force between them? (fg = g (m1 m2)/d2 where g = 6.67 x 10-11 n m2/kg2 )
show your work.
you!

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

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?

Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c