Explanation:
It is given that, the force of gravity pulls down on your school with a total force of 400,000 N.
The force of gravity is given by the formula as follows :
F = mg
m is mass and g is the acceleration due to gravity
Mass of an object remains same always. But if the mass of your school becomes twice of the initial mass, the force of gravity pulling down on your school would be exactly twice.
The answer is a) the hunter
That is 19 seconds cuz of the fast inplosion
Answer:

Explanation:
Let m and e are the mass and charge of an electron. It is accelerated from rest through a potential difference V and are then deflected by a magnetic field that is perpendicular to their velocity. Let v is the velocity of the electron. It can be calculated as :


When the electron enters the magnetic field, the centripetal force is balanced by the magnetic force as :


or

So, the radius of the resulting electron trajectory is
. Hence, this is the required solution.