According to the work principle, the ration of work output to work input is always .

greater than one

less than one

equal to one

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver