A student swings a rubber ball attached to a string over his head in a h circular path. The piece of string is 1.5 m long and the ball makes 120 each minute. a. What is the average velocity of the ball? b. What is the ball's centripetal acceleration? c. what is centripetal force if the mass of the rubber ball is 5 g

When someone eats food

The answer would be a

Sounds propagates through some kind of medium. usually it's air, but it goes just as well through solid objects like walls, windows etc. a soundwave will compress the (air)molecules in front of it, and if this increased density wave hits your ears, you register it as sound. solid objects like walls are a lot denser than air, this means that they will damp a wave, but also carry it easier.