You could draw a cow behind a spiked fence
1) yes and the last dot
2) no and is the 4th dot
3) yes and is the 3rd dot
4) yes and is the 2nd dot
5) no and is the 5th dot
You didn’t have a question for the 1st dot but I am gonna say that is the answer to the 6th questions if there is one
Answer:
There is no specific volume that a player must be at when playing at a forte level, or a mezzo forte. It's up to the creative interpretation; it's up to the conductor and the musicians.
A piano is not always the same. If you're playing a violin concerto, your piano might be a soft but carrying whisper, as opposed to if you're playing an ostinato in a wind band (ugh, alto saxophone parts). This is part of what makes music so extraordinary. There are surely right and wrong ways to do things; an Eb will never be an E, but how you play, your expression, is entirely up to you.