A model rocket has a mass of 0.435kg. It is mounted vertically and launches directly up with a thrust force of 13.1N. Determine the net force on the rocket as it is launched.

the diagram which shows forces as either balanced = same speed or unbalanced = accelerarting

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.

ok

explanation:

a.   mass number from atomic number