When poked by a spear, an operatic soprano lets out a 1200-Hz shriek. What is its wavelength if the speed of sound is 345 m/s

0.3m

Explanation:

Given data

Frequency= 1200Hz

Wave length= 345m/s

We know that

v= fλ

substitute

345= 1200*λ

λ = 345/1200

λ= 0.3m

Hence the Wave lenght is 0.3m

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.

no simpler subs form complex ones. synthesise = make