Which is an example of a mathematical model of a landslide? A. Using calculations to predict when a landslide will happen
B. Making a model of a mountain out of clay C. Thinking of a landslide as a river flowing downhill
D. Pouring dirt down the side of a hill and photographing it SUBMIT​​

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

Why do lunar and solar eclipse not happen every month

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth