Theoretically, how far away from the earth do you have to go to feel zero gravitational force from the earth?
a. an infinite distance
b. the orbit of the moon
c. the orbit of mars
d. outside the solar system

i've put a as my answer for now

This is a trick question, as to feel zero gravitational force you just have to leave about half of the earths radius, so id guess it would be B.

Explanation:

i don,t know so just answer mine

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.