PLZZ HELP What parts of a pulley system will cause the actual mechanical advantage to be less than the ideal mechanical
advantage?

During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little

What is the relationship between globular clusters and the milky way?