Question

Give reasons:
(1) Why earth do not revolve around moon.
(ii) Why we weight less in atmosphere​

Answer 1

Answer:

1.The only thing is that Earth's mass is 81 times greater than the mass of the moon. This means that although it moves in a circle, it moves in a much smaller circle. The circle that the Earth moves around is so small that the center of this circle is inside the Earth.

2. What makes your weight be less in a heavy atmosphere is the buoyancy effect - your volume is taking up space that would normally be taken by the heavy air, and the mass of the displaced air is subtracted from your mass when calculating weight: your weight=(your mass-displaced air mass)*(acceleration of gravity).