14. which of the following processes involving cola
represents a chemical change?
a. liquid cola freezing into solid form
b. ice cubes melting and changing into liquid
water in a glass of cola
c. water droplets condensing on the outside of a
glass of cold cola
d. carbonic acid in cola changing into carbon
dioxide and water
and explain why the answer is right : )

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

How is zig zagging a form of acceleration?

What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.