How much heat is needed to vaporize 20.5 g water from the liquid to gas phase, given the heat of vaporization of water is
2260 J/g?

During which time interval does the object travel approximately 10 meters

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?