For today’s weather, it’s up to you to decide where the fronts are located. Draw the fronts on the map. Explain your reasoning

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

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