Some questions about blockpower

Just wanted to clear some things up for myself-

Do rockets explode on impact with players?
Can surplus ammo from ace miner do damage?
Does the griefnuke power do damage?
Do you take fall damage with jetpack power?

No. They detonate when they go ‘too far’ or hit a block, but all that is determined when the rocket is fired.

It should, yes.

Not health damage.

If I remember correctly, it will do normal fall damage unless the fall damage would kill you. In that case it leaves you with 1 hp, and if you already have 1 hp, you die. (I think)