A(n) recording is made by capturing the fluctuations of sound waves and stores those signals in a record's grooves or a tape's continuous stream of magnetized particles.

Ascientific blank must be testable and capable of being proven false?

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive

Matter that emits no light at any wavelength is called