If surface is perpendicular to the electric field, then its electric field will be? Options A= zero B= minimum C= maximum D= none

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

c) up

hope this

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.