Potential energy is stored energy!!!!
The Law of Conservation of mass is important because then when performing a chemical reaction scientists can determine about the amount of substance that will be produced.
Work done= <span>force x distance moved in the direction of that force so: 200 x 15 = 3000J=4kJ</span>
The answer is either a or c
When an ion or a molecule passes through a membrane without something facilitating, or encouraging that passage, such as a protein does. What drives it is the force of the diffusion itself instead.