Which units can be used to measure length or distance? Check all that apply.
2 answers:
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To solve the exercise it is necessary to take into account the definition of speed as a function of distance and time, and the speed of air in the sound, as well
Where,
V= Velocity
d= distance
t = time
Re-arrange the equation to find the distance we have,
d=vt
Replacing with our values
It is understood that the sound comes and goes across the entire lake therefore, the length of the lake is half the distance found, that is
Therefore the length of the lake is 634,55m
Answer:
Explanation:
According to Newton 2nd law of motion: F = ma where m is the mass of the moon and a is the centripetal acceleration of the gravitational force.
Also Gravitational force formula
where G is the gravitational force, ME is the mass of Earth and S is the mean distance between Earth and Moon.
As the moon is at constant circular motion around Earth, there forces balance out:
We can now substitute and
and