A reaction occurs in which carbon combines with oxygen to form carbon dioxide. Is this a chemical reaction or a nuclear reaction, and how do you know? A. This is a chemical reaction because only the electrons were rearranged.
B. This is a nuclear reaction, because mass was conserved
C. This is a nuclear reaction because the atoms nuclei changed.
D. This is a chemical reaction because some of the mass was not conserved​

Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.

Ahorizontal force of 400.0 n is required to pull a 1760 n truck across the floor at a constant speed. find the coefficient of sliding friction.

Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class