Two Kamui Questions

1: Can a susanoo used by someone with kamui be intangible? If so, would they be able to make their kamui shuriken intangible, too?

2: Can a jutsu imbued with kamui be absorbed if intangible; like if Kakashi made a raikiri imbued with kamui and made it intangible, would the preta path be able to absorb it even when it isn’t tangible?