С An electric motor can usefully convert 18 J of energy each second into
kinetic energy to raise a mass above the ground. The motor has an input
current of 2.5 A and an operating voltage of 16 V.

Answerwavelength;

Honestly "global warming" may be a slight possiblity, however they called it "climate change" because its not real, in fact we had one of our coldest days here not too long ago, and the "issues" with this subject is a blindfold for actual problems.

I'd go for the one that says that knees are fulcrums, lower legs are levers and the ankles hold loads.hope it ,happy homework/ study/ exam!