2007-12-05 03:05:12 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Weather
cold air is much denser, therefore "heavier". although once warmed up, the cars exhaust will still rise, it rises slower in cold dense air.
2007-12-05 03:13:19 · answer #1 · answered by randy 7 · 0⤊ 1⤋
It would actually have a shorter amount of time on the ground. Hot air rises, and last time I checked exhaust was pretty warm. The only reason you might think it to stay on the ground longer is that you can see exhaust a great deal better in the cold, so you can track it a lot longer.
2007-12-05 03:09:35 · answer #2 · answered by Mic K 4 · 1⤊ 0⤋
Actually the opposite, because heated gases are less dense than cold ones. The air is very cold, so the heated exhaust gas will rise more quickly in cold weather.
2007-12-05 03:09:42 · answer #3 · answered by Anonymous · 1⤊ 1⤋
No. All the high emission warning days are in the summer. It actually is shorter because it is windier and the gas is hot so it rises.
2007-12-05 03:13:43 · answer #4 · answered by Anonymous · 1⤊ 0⤋
You worry way to much.
2007-12-05 03:09:10 · answer #5 · answered by Anonymous · 0⤊ 0⤋