Double displacement...I think
Answer:
The rougher a surface is, the more friction it can create.
Explanation:
The rougher a surface is, the more "holes" are on the edge which means things can get caught on in because multiple holes can catch each other.
Decreasing the amount of current flowing through the circuit by using a 5 volt battery instead of a 10 volt battery.
5lbs is greater.
Hope that helps!
Explanation:
190-N divided by 20.0 is definitely 9.5 for the component of the weight force parallel to the planes surface