How much would a 25.0 kg rock weigh on uranus?

The gravitational acceleration on the planet Uranus is 8.87 m/s² .

If we proceed with a legitimate response and ignore the possible intent of a crude, sophomoric anatomical reference in the question, the weight of the rock would be

Weight = (mass) x (gravity)

weight = (25 kg) x (8.87 m/s²)

Weight = (25 x 8.87) (kg-m/s²)

Weight = 221.75 Newtons  (compared to 245.25 Newtons on Earth)

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.