Provide a suitable explanation to how a sound wave is created by an object vibrating in air. Use the keywords compression and rarefaction.

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)

Most short-period comets do not have randomly oriented orbits because

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero