The gravitational force between two objects is ______ proportional to the products of the masses and _______ proportional to the
2 answers:
Explanation:
The gravitational force between two objects is <u>directly</u> proportional to the products of the masses and <u>inversely</u> proportional to the square of the distance between them. It is known as Newton's law of gravitation.
In mathematical terms it is given by :
Where
M and m are two masses
r is the distance between them
G = universal gravitational constant
The value of G is a universal constant. Its value do not varies from one location to another.
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Answer:
h = 0.362 m
Explanation:
The pressure equation with depth is
P₂ = +ρ g h
The gauge pressure is
P2 - = ρ g h
This is the pressure that muscles can create
P₂ - = 3740 Pa
But still the person needs a small pressure for the transfer of gases, so
P₂ - = 3740 - 188 = 3552 Pa
This is the maximum pressure difference, where the person can still breathe,
Let's clear the height
h = 3552 / ρ g
h = 3552 / (1000 9.8)
h = 0.362 m
This is the maximum depth where the person can still breathe normally.