HELP ASAP!!!

Will mark you brainliest if it's correct!

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space