Draw a conclusion about why or why not pipelines should be part of our energy strategy in the US. Argue your case logically and objectively. HELP

Why do electron microscopes have higher resolving power than light microscopes?

What is the angular momentum of the bar about the axle?

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)