Answer:

Explanation:
As we know that there is no external torque on the system of platform, banana and the monkey
so the angular momentum of the system will remains conserved
so here we can say


here we know that





Now from above equation



Answer:
4 times
Explanation:
Given:
diameter of the input piston, 
diameter of the output piston, 
In such mechanical arrangements the fluid acts as an incompressible link and the pressure remains uniform throughout the fluid bulk.
Then, by the Pascal's law:

where:
are the input and the output forces respectively.
are the input and the output area of pistons respectively.




Answer:
Explanation:
There are 400 billion stars in our galaxy
There is 1 Mg and 2 Cl i think