yes it can
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.
no
Radio signals can travel through salt water.
Yes, all xrays travel at the speed of light.
Yes, electricity can travel through water because water is a conductor of electricity due to the presence of ions.
The S Wave (Secondary Wave) cannot travel through water. On the P Wave (Primary Wave) and the Surface Wave can travel through water.
Yes, electricity can travel through mineral water because of the presence of ions.
no
water