một thanh kim loại chưa bị nhiễm điện được cọ xát và sau đó trở thành vật mang điện tích dương đó là do thanh kim loại đã

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

Which type of basaltic lava flow has a fairly smooth

Which of the following best describes the circuit shown below?