A 1500.0 gram piece of wood with a specific heat capacity of 1.8 g/JxC absorbs 67,500 Joules of heat. If the final temperature of the wood is 57C, what is the initial temperature of the wood? (2 sig figs)

How do scientists think that gravity affected the formation of our solar system?

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution