Between which of the following surfaces would the force of friction be greatest
a. rubber shoes soles on asphalt
b. rubber shoes soles on wet grass
c. rubber shoes soles on artificial turf
d. rubber shoes soles on ice

The purpose of a lab is to do your "expirements" the importance of the topic is so you can now what the story is about and the last one is because no one is me with my question ( what is 3 over 4 x - 9 = 27 maybe you can )

Ireally just need to get finished with precal! i’m really sorry i have to do this! hope this !

Wavelength = pie*69+69 with ur mom

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other