How many steps of calculations would each of the following require? Water at 0°C is warmed to 55°C

Steam at 100°C is cooled to
15°C

H2O goes from -23°C to 75°C

water at 0°C is warmed to steam at 100°C

Steam at 110°C is cooled to ice at 0°C

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.