Teeth are an example of which type of simple machine?
a. lever
b. wedge
c. inclined plane
d. pulley

(75°f − 32) × 5/9 = 23.889°c

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.

so easy. just google the electromagnetic waves and it’ll pop up.