Answer:
- A vibrating object
- a medium to travel
HOPE IT HELPS :)
PLEASE MARK IT THE BRAINLIEST!
The weight is 45 N, because the three chains hold the sign, and each contributes 15 N.
Notice that the mass would be the weight/acceleration of gravity, m = 45/9.8 kg. But they ask the weight (force, so Newtons)
Precisely around 1,800 miles below.
Answer:
I don't understand it.....
B.adding carpet and fabric wall covering to absorb sound
