Excel project for the coeff of static friction

 

Graph of the Cosine function

 

Gimp project 004

 

I used paintings of Vincent van Gogh that is one of the best painters of all time

Proyect gimp 005

 Original photo:

Final photo:

Proyect Gimp 001

 Initial photo: 

Final photo: 

In this photo I erased some light cables that were in the photo, I put the building in the centre of the photo and I cropped it to 15:10.

Vietnamese Flag with InkScape

 This is my vietnamese flag created with InkScape

European flag with InkScape

 This is my European flag created with InkScape: