It would never stop bouncing.
Net force = Pull force - Friction (Opposing force) = 700 - 215 = 485 N
The cars will have equal speeds and the 2 kg car will have greater kinetic energy.
relation between potential difference and electric field is given as
so here we know that
d = 3 cm
So now when plates are separated to 4 cm distance carefully
the potential difference between them will change but the electric field between them will remain constant
So at distance of 4 cm also the electric field will be E = 1000 N/C
The correct answer to the question is D.Biosphere
Every planet has it's own gravity.Hence, they have their own atmosphere.The concentration of particles and gases may vary from planet to planet depending on their force of gravity.
Every planet contains the lithosphere,the hard and rigid outer layer which contains the crust and mantle.
Earth is the only habitable planet which supports biosphere.Its atmosphere contains 20% of oxygen along with nitrogen which are responsible for sustaining various types of flora and fauna as well as evolution of new species.