Abrick is dropped from a 78 m high scaffold what is the velocity as the brick hits the pavement ?

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

How do the kidneys affect homeostasis