Problema 1.- Los rieles de una via de tren de acero, tienen 1800 m de longitud. ¿Qué longitud tendrá cuando la temperatura aumente de 24'C A 46°?

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1: