An object has a kinetic energy of 8.8J, and a mass of 450g. How fast is the object moving?

The formula for KE is

We have everything we need to solve for the velocity, but we first have to convert the mass from grams to kg:

450 g = .450 kg

and we'll rearrange that and solve it for v before we do any math:

so

v = 6.3 m/s rounded to the correct number of sig fig's

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.

higher potential

explanation:

because it is in a high speed so it must move into a of high potential