<span>Quarks are thought to be the basic component of protons and newtons.</span>
Answer:
This is because using a long handled requires less force to the center of gravity and makes it easier to rotate than a short handled spanner
You should put when you will leave, where you will be, and what time you will get back.
Choice ' C ' is a true statement.
The other choices aren't.
Answer:
The mass of the earth, 
Explanation:
It is given that,
Time taken by the moon to orbit the earth, 
Distance between moon and the earth,
We need to find the mass of the Earth using Kepler's third law of motion as :




So, the mass of the earth is
. Hence, this is the required solution.