What is the speed of a wave if the wavelength is 200 m and the period is 20 s?

Wavelength is the distance between 2 crests or 2 troughs in a wave.

Period is the time taken for one wave to be completed. Frequency is the number of waves to pass a particular point in 1 second.

Period and frequency are inversely proportional

to find the speed we have to use the following equation

v = fλ

where v - speed, f - frequency and λ - wavelength

we have been given the period (T) so we have to find frequency (f)

f = 1/T

f = 1 / 20 s = 0.05 s⁻¹

v = 0.05 s⁻¹ x 200 m

v = 10 m/s

the speed of the wave is 10 m/s

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle