Answer: A thin membrane.
Explanation:
When a sound signal is allowed to pass through the voice coil suspended between permanent magnet, magnetic field will be induced which will cause vibration in the diaphragm - a thin membrane causing disturbance of air in the surrounding of membranes which eventually produce sound waves.
Therefore, we can conclude that a thin membrane of the loud speaker produces sound waves
A red ladybug appears red in white light, red in red light, and black in blue light. Those would be the proper selections you'd need.
The answer is 4.0075 x 10^9
Move the objects faster to get more friction.