You go out to dinner and the bill comes to $ 34.63. how much should you tip if you want the tip to be 20.0 % of the bill? express the dollar amount to the nearest cent.

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules

What is the number of neutrons in an atom with atomic mass of 35

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity