I think that the answer is A
Potential Energy (P.E) = Mass x
Acceleration due to Gravity x Altitude. Putting this value in the above equation we get, Dimensional Formula of
Potential energy= M1L2T-2.
I think it's (ASTRONOMICAL UNIT)
Explanation:
It is used to compare the distances of other bodies in the Solar System, such as the Sun, the planets, comets, and asteroids.
Explanation:
If the turntable starts from rest and is set in motion with a constant angular acceleration α. Let 
is the angular velocity of the turntable. We know that the rate of change of angular velocity is called the angular acceleration of an object. Its formula is given by :
............(1)
Using second equation of kinematics as :
Using equation (1) in above equation
In one revolution, 
(in 2 revolutions)
Hence, this is the required solution.
Answer:
Point A is at higher potential than point B
Explanation:
Electrons are negatively charged - this means that they are attracted by positive charges and repelled by negative charges.
This also means that they tend to move in a direction opposite to the electric field lines (because electric field lines point away from a positive charge and toward a negative charge). So, they also tend to move from a point at lower potential to a point at higher potential.
In this problem, the electrons flow from point B to point A: therefore, point A must have higher potential than point B.
