An object starts from rest and accelerates 4.3 m/s^2 for 2.05 seconds. what is its displacement from the start position

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.