The gravitational force between the Earth and the Moon is
Explanation:
The gravitational force between two objects is given by:
where
:
is the gravitational constant
m1, m2 are the masses of the two objects
r is the separation between them objects
In this problem, we are given:
(mass of the Moon)
(mass of the Earth)
(distance between Earth and Moon)
Substituting into the formula, we find the force:
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Answer:
0
Explanation:
The formula for finding acceleration is a = v/t (velocity/time)
so first we must find the velocity
the formula for finding velocity is v = d/t (displacement/time)
and speed is the distance traveled/time
so you must find the distance traveled
the circumference of a circle with a radius of 2cm is 12.57
and the body of mass traveled this circle 3 times
so 12.57 times 3 is 37.71
so that was the total distance traveled, and this was completed in three seconds
so s = 37.71/3 which is just 12.57 = 37.71/3
if we assume that these circles began and ended in the same place, that would make the displacement of the body of mass 0
so v=d/t v=0/3 0=0/3
meaning a=0/3 0=0/3
I think it’s D: The light is refracted
Punctuated equilibrium is defined as a theory in the evolutionary biology in which it states that when one specie appears in the fossil record they will become stable, and that it will only show little evolutionary change for most of their geological history. Therefore, the option that cannot be the result of punctuated equilibrium is extinction and coevolution. The correct answer is option A.
By heat or change in matter,
there can be different reactions that create heat (like exothermic or endothermic reactions)
or movement can give off energy too,
energy is basically just heat