6. A rock is dropped from a bridge and hits the water 2.8 seconds later. How high is the bridge ?

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

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