If an object that is emitting sound is moving fast enough towards an observer, what pitch will the observer hear? a) (A) A pitch that is higher than the pitch actually produced
b) (B) A pitch that is lower than the pitch actually produced
c) (C) The same pitch as the pitch actually produced
d) (D) Impossible to determine

(A) A pitch that is higher than the pitch actually produced

Explanation:

Doppler effect

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.

3.2x10^7