Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Lv 2293 points
DanMac
Favourite answers41%
Answers27
For recharging a car battery, is it better to run a car at 100km/h @ 2200 RPM? or 60km/h @ 2400RMP?
Just wondering whether what matters is constant speed or constant RMP for long periods of time.
5 AnswersMaintenance & Repairs7 years ago