Select the corect lage.
These four trucks are identical. Each box loaded on the trucks has the same mass. Choose the truck that has the greatest force of gravity acting
on it.

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

Avariable that is not being directly tested during an experiment should be

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius