Determine the work done when a forklift truck lifts a box of mass 350 kg a height of 2 m.​

work done = mgh

350×10×2

7000J

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.

1= 26.17

2= 1.17

3=30.86

4=5.86

just took the assigment on edge