A fisherman notices that one wave passes the bow of his anchored boat every 4 seconds. He measured the
wavelength to be 8.5 meters. How fast are the waves traveling?

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.)

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?