How do you capture two and a half wavelengths on a sound wave?

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Which two particles are found in the center of an atom