John is lifting a 1.5 kg toy to a height of 1.2 m above the ground. how much work is done? ?

This drawing shows a human body system. what is the primary function of this body system?

Two nails have identical sizes and shapes. in one nail, 20 percent of the domains are lined up. in the other nail, 80 percent of the domains are lined up. which has stronger magnetic force? first answer gets brainliest!

Which of the following molecules is polar? c3h7oh c2h5cooh