A 15.0 kg box is hung from the ceiling by one rope. What is the tension on the rope?

Tension = Mass * Gravity

Tension = 15 * 9.81 = 147.15

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.

v 154.9= 0.9 length length s little over 154.9cm