What is the speed of a periodic wave with a frequency of 4.5 hz and a wavelength of 0.9m?

4.05 m/s

Explanation:

Frequency f and wavelength lambda are related to each other through the propagation speed v as shown below. That allows us to caclulate the speed when f and lambda are known:

The speed of the wave is 4.05 m/s.

i dont know but

explanation:

whoever your teacher is, deserves a raise for using pokemon as an example

the body's situation won't change the forces are equal opposit and on the same body