Answer:
Option C. be frozen at 12 noon
Explanation:
This can be explained by the special theory of relativity according to which at greater speeds time slows down and length contracts in the direction of motion.
Also if a body travels at the speed of light time will stop and the body will will reduce to zero length.
Therefore, for the given case time will freeze at 12 noon.
58,000 --------------------------------------------------------------
Answer:
F = m X a
Therefore ,
Force required = 50 X 30 = 1500 newton
Answer:
E(1m) = 4*E(2m)
Explanation:
By definition, an electric field is the electric force per unit charge, produced by a given charge distribution.
For a point charge, it is the electric force produced by the charge, over a positive test charge located at a distance d from the charge.
So, the E at a point 2 m away from the charge q, can be expressed as follows:
At a point 1 m from the charge, the value of E is given by the following equation:
As it can be easily seen, the magnitude of the electric field at 1 m from the charge creating it, is 4 times larger than the one at 2 m.
This is due to the electrostatic force obeys an inverse-square law, consequence of our universe be three-dimensional.