Answer:
hlo dear
I am topper72 and I am brainly user
what's your problem pls post one by one question otherwise noone can helped you
I hope u understand ...and by the way what are you reading in school or college jab sara question brainly par he puch loge tho khud samajh kaise paoogay aur agar me bata v dunga tho tum sirf copy or book me likh lo ge tho ussse thorhe samajh jaooge
To have a force of 3.8x10-8 the two chaarges must be 0.65m apart.
C. isotope
Isotopes have the same atomic number but different mass number because of the difference in the number of neutrons in the nucleus of the atom.
Well, if the substance started as a liquid, lost energy, and changed state, then it's in the SOLID state right now.