Designing and making custom-made guitars is an example of which of the following processes?

Intermittent process.

Explanation:

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.