An iron bar is used to lift a slab of cement. the force applied to lift the slab is 4.0 × 10^2 n. if the slab weighs 6400 n, what is the mechanical advantage of the bar?

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.

Newtons view of arrangement of the universe