If you blow air between a pair of closely-spaced Ping-Pong balls suspended by strings, the balls will swing A) toward each other.
B) apart from each other.
C) away from the air stream.

Ajogger accelerates from rest to 4.86 m/s in 2.43 s. a car accelerates from 20.6 to 32.7 m/s also in 2.43 s. (a) find the magnitude of the acceleration of the jogger. (b) determine the magnitude of the acceleration of the car. (c) how much further does the car travel than the jogger during the 2.43 s?

What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force

How would a small bar magnet be oriented when placed at position x?