A piece of aluminum foil measures 6.51 cm by 8.34 cm and has a mass 0.383 g. The density of aluminum is 2.70 g/cm3. What is the thickness of the foil in cm

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

Answer mechanical energy;