Marshmallow Launcher lab Draw a free body diagram for the marshmallow

a) Sitting on the device just before launch
b) At the maximum height
c) When it comes to rest

I got part a, I need help with b and c.

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line