Ahummingbird can flap its wings 200 hz times per second. if the hummingbird produces waves that travel at 340 m/s by flapping its wings, what is the wavelength of these waves?

use wave speed equation:

wave speed (in m/s) = frequency (in hz) x wavelength (in m)
s = f
λ\lambda
λ

1.7 m

Explanation:

s = f λ

340 m/s = (200 Hz) λ

λ = 1.7 m

car a and b are moving in opposite directions

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adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.