We did this experiment before, when the rope moves, it represents the waves passing through in from the level of intensity. I hope this is a good answer.
Answer:
Explanation:
The gravitational potential energy gets transformed into translational and rotational kinetic energy, so we can write 
. Since 
(the ball rolls without slipping) and for a solid sphere 
, we have:
So our translational speed will be:
The 48 and 47 are different atomic masses, this is caused by having a different number of neutrons.
B when is spins it means its rotating east and west directions
3.11 is the answer I think
