PED 138 2

This paper has 4 parts answer all part except part 3  you don't need to do anything except to watch more video: 

For the first part, I uploaded the file to answer it. 

For part 2 there is uploaded a video, here is a link in case it's not uploaded.

https://www.transfernow.net/files/ddl/?utm_source=PED138WashclothVideo&utm_content=en 

For part 3 just watch the video to answer part 4

For part 4 answer it like it's yours.