In a lift, a ceiling lamp has come loose and falls down. how long does the lamp take when the cab height is 2.5 m? the following cases apply:
a) the elevator moves at a constant speed v0 = -0.5 m / s downwards.
b) the elevator is accelerated upwards with a constant acceleration a0 (general formula sufficient).
c) the elevator moves downwards with the acceleration g

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

The slope of a velocity time graph over any interval of time gives the during that interval

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?