Why does the screw have a very low efficiency? because with a low effort it can lift large loads. because it take a huge effort to turn in order to lift large loads. because the input work is much greater than the output work.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What is the effect of returning nuclear reactor cooling water back into bodies of water?

Wind and moving water provide energy. chemical mechanical thermal none of the above