friction coefficient
...that the friction coefficient is very important in determining the friction between two objects?
...that the <b id="mwFg"><a class="mw-redirect" href="./Friction_coefficient" id="mwFw" rel="mw:WikiLink" title="Friction coefficient">friction coefficient</a></b> is very important in determining the <a href="./Friction" id="mwGA" rel="mw:WikiLink" title="Friction">friction</a> between two objects?