Yes, they can only be stopped (even then not completely) by several centimetres of lead.
Try to spell properly next time, it's only 3 extra letters!
They travel much, much faster than that.
a grid is a device placed in front of the image receptor which only allows xrays to travel directly through from the tube and prevent xrays which have been "scattered" from passing through to the image. This gives a much clearer resulting image. Grids are generally only used on thicker body parts where scattered xrays are more of an issue
no.
8 minutes
Yes.
Yes, all xrays travel at the speed of light.
It can travel through things like: Water Wood Metal Hole (like in card board paper)
Yes.
Sound waves need matter to travel through, and wood is matter, so yes, sound waves travel through wood. They travel through wood faster than they do through air, as wood is denser than air.
yes methylated spirits goes through filter paper faster than water
radiolucent allows x-ray pass through radiopaque does not allow it to pass through
Yes you can very clearly and its just so amazing!