the answer is d because it has the smallest wavelength
Newton's third law<span> is for every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. </span>
B.
Explanation:
The gravitational force between the Earth and the Sun is given by:
where
is the gravitational constamt
M is the mass of the Sun
is the mass of the Earth
is the distance between Earth and Sun
Since we know the magnitude of the gravitational force between Earth and Sun, (from the table given), we can re-arrange the formula and find the mass of the Sun, M:
C. Because the mass of the Sun is much much greater than the mass of the Moon
Explanation:
We already know the gravitational force between Earth and Sun (. By applying the same formula as before, we can calculate the gravitational force between Earth and Moon:
where
is the gravitational constamt
is the mass of the Earth
is the mass of the Moon
is the distance between Earth and Moon
Substituting into the formula, we find
And we see that this is smaller than the force exerted by the Sun.
The correct answer is B. Nitrogen
Here we can say that net speed against the wind is given by
also if it is moving along the direction of wind we will have
now add the above two equations we will have
also we can say