Which formulas might be used to find the velocity based on a position-time graph? check all that apply.

y2 – y1
d/t
x2 – x1
y2 – y1/x2 – x1
? x/t

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error