Leaky Bottle and Water Pressure
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C) Universal Law of Gravity
Moon Has An Unbalanced Force On It!
Gravity - mutual force of attraction between any two objects in the universe
G = Gravitational constant = 6.67 x 10-11 Nm2/kg2
(Reference Table p. 1)
m1, m2 two masses
r - distance between
Giancoli p. 131) 28
Fg proportional to
Fg inversely proportional to the square of distance between the object's center of mass
Ex) If the gravitational force on satellite A is 160,000 N, what is the gravitational force on satellite B?
F = 40,000 N
(twice distance, 1/4 the force)
Fluids in Micro-Gravity
Ranking Task Rank the gravitational forces from greatest to smallest.
Enrichment
How do we measure very tiny gravitational forces?
Determining G, Cavendish
Dark Matter
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