Solar + Battery Car DIY STEM Kit
$11.99$5.95
Materials | Coeff. of Static Friction s | Coeff. of Kinetic Friction k |
Steel on Steel | 0.74 | 0.57 |
Aluminum on Steel | 0.61 | 0.47 |
Copper on Steel | 0.53 | 0.36 |
Rubber on Concrete | 1.0 | 0.8 |
Wood on Wood | 0.25 - 0.5 | 0.2 |
Glass on Glass | 0.94 | 0.4 |
Waxed wood on Wet snow | 0.14 | 0.1 |
Waxed wood on Dry snow | - | 0.04 |
Metal on Metal (lubricated) | 0.15 | 0.06 |
Ice on Ice | 0.1 | 0.03 |
Teflon on Teflon | 0.04 | 0.04 |
Synovial joints in humans | 0.01 | 0.003 |
Answered by: Ertan Salik, M.A. Physics, USC
'Knowledge can be communicated, but not wisdom. One can find it, live it, be fortified by it, do wonders through it, but one cannnot communicate and teach it.'
Hermann Hesse (1877-1962) Top 100 Lists:Popular Products:
Science Articles:Shop Our Online Science Store© Copyright 1995-2024 PhysLink.com
|