a brick 20cm long,10cm wide and 5cm thick has a mass of 0.5Kg Determine the greatest pressure that can be exerted by the brick on the surface​

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