What is weathering?
Just read my journal entry :/ that was made like 12 days ago -3-

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?

J. j. thomson’s experiment disproved the theory that an atom