3(b) A stationary car horn emits a sound wave of frequency 400 Hz. The wavelength of the wave is 0.85 m.
Calculate the speed of sound.
Speed of sound =?
m/s

(Total 3 marks)
Page 3 of 6
d7012021
F
1
a

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

What are some properties of transverse waves?

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.