Which object(s) is(are) maintaining a constant velocity? Pick FOUR!

Which sound characteristic is not affected by the relative motion of an object

How does changing the frequency affect the energy of the wave?

Aboat travels at 15 m/s in a direction 45° east of north. the boat then turns and travels at 18 m/s in a direction 5° north of east. what is the magnitude of the boat's resultant velocity? round your answer to the nearest whole number. /s what is the direction of the boat's resultant velocity? round your answer to the nearest whole degree. ° north of east