What’s the question or problem ?
Answer:
I think it’s the third one
Answer:
ans 5
Explanation:
hope it's help It seems to me
The mass needed at peg 1 is a 5g mass.
The 15g should hang at peg 5.
The reason is force x distance clockwise is equal to force x distance anti-clockwise
Answer:
The number of complete vibration or wave made in
one second is called frequency.