A violin string which is 30.4 cm long is tuned so that its pitch is concert A which is 440 Hz. (In the case of a violin, "pitch" means the fundamental frequency of the standing wave on the string.) ( can effectively shorten the string by placing my finger on it and pressing it down. How far from the end of the string should I put my finger if I want the pitch of the note to be 573 Hz

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.

answer; how far out of place which the object finished relative to the starting location;