Why do cars tires need more air in the winter then in the summer?
a) temperature is lower so tires expand
b) temperature is lower so tires contract
c) temperature is lower so the air inside the tires expand
d) temperature is lower so the air inside the tires contracts

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

What is the work done by the electric force to move a 1 c charge from a to b?