Apolice car is approaching the corner. explain what happens to the frequency of sound as it draws closer. what will you hear?

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

Why are pipes bursting in the in extremely cold weather?

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.