Answer:
Im not 100% sure but i think the answer is A. An electron in an atom jumping from a lower energy state to a higher one.
Explanation:
lmk if its wrong
Answer:
The period of a pendulum does not depend on the mass of the ball, but only on the length of the string. Two pendula with different masses but the same length will have the same period. Two pendula with different lengths will different periods; the pendulum with the longer string will have the longer period.
Explanation:
Answer:
A
Explanation:
It varies from person to person.
I’m sorry if i took up a lot of space, hope this is a valid approximate answer
C.
The particles move perpendicular to the direction of the wave.