Wich subatomic particles will you add or remove to change the mass of an atom? a)electrons and protons b)protons or neutrons c)electrons or neutrons d) electrons only

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Me with this and you will be marked brainliest

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?