The mass of Mars is 6.419 x 1026 kg, and the mass of a single proton is 1.673 x 10-22 kg. Assuming Mars is made entirely of protons, how many protons would make up Mars?
a. 1.071 protons
b. 3.837x 10 protons
c. 3.837x 10-54 protons
d. 2.610x1054 protons

What even is this. where is the question

45 is the correct answer

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