Author Question: On a warm 30.C spring day, you are watching Richard take a buzzer and twirl it horizontally around ... (Read 21 times)

ahriuashd · **on:** Jul 27, 2018

On a warm 30.C spring day, you are watching Richard take a buzzer and twirl it horizontally around on the end of a 2.0 meter long string. Why do you hear the buzzer tone Vary from 718. Hz to 772. Hz? What is the angular speed?

What will be an ideal response?

Question 2

Astigmatism is usually due to

A) the cornea or lens being out of round.
B) accommodation.
C) myopia.
D) missing rods.
E) hyperopia.

xthemafja · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

You hear the effect of a Doppler shift as the buzzer periodically moves away and then toward you. Angular speed 6.3 rad/s.

Answer to Question 2

A