What energy transfers happen when you cook sausages on a camp fire burning wood?

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

What is the single most important equation in all of physics?