Answer:

Explanation:
First of all, let's convert from nanometres to metres, keeping in mind that

So we have:

Now we can convert from metres to centimetres, keeping in mind that

So, we find:

Try 40. it seems correct. i’m sorry if i’m wrong.
Yes. sound waves are produced by energy.
the friction forces are smaller than the forward force
Grade 3 is a completely torn ligament