True! All sounds come from some type of vibrating object. Hopefully I helped!
You can do it in two ways
1) 220-your age
2) <span>206.9-(0.67*your age)
Hope this helped :)</span>
Write about some struggles you’ve faced and what they can do to avoid those struggles. Maybe also what you personally learned from the struggle too.
Answer:
Explanation:
We are given that
Mass of box=60kg
Net external force applied on the box=90 N
Friction force =30N
We have to find the acceleration of the box.
We know that
Net external force=ma
Substitute the values then we get
Hence, option b is true.