Incandescent light bulbs are less efficient than compact fluorescent bulbs.
True or fulse

You throw a baseball directly upward at time t = 0 at an initial speed of 12.3 m/s. what is the maximum height the ball reaches above where it leaves your hand? at what times does the ball pass through half the maximum height? ignore air resistance and take g = 9.80 m/s2.

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these