Two parallel plates each measuring 10cm x 10cm are separated by a dielectric 1mm thick. If the p. d between plates is 800Volts and charge on each plate is 4µC. Find, i. Electric flux density between plates
ii. Relative permittivity of dielectric

Answerthe distance between the two ends of the galaxy is 150,000 light years;

The inference is supported by evidence in the graph is this is an exothermic reaction where the total release of energy equals a + c.

. we do not care the other details; the average velocity is only concerned with the  displacement rather than the  distance traveled. displacement is the change in position, or the "straight-line vector from the initial position to final position".