Please help! Explain how a carbon-zinc dry cell produces a voltage difference between the positive and negative terminals.

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

Can you match these to the correct definition