Answer:
The number of molecules displaced in a vibration makes the amplitude of a sound.
Answer:
B
Explanation:
Speed is the magnitude of the velocity vector, so it can never be negative.
B. is the answer.
C is not correct because the light is actually reflected off of an opaque object.
Answer:
An organelle is a structure in a cell that has specific jobs to do. Organelles are held in the cytoplasm
