At what speed must the electron revolve round the nucleus of the hydrogen in its ground state in order that it may not be pulled into the
nucleus by electrostatic attraction

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

Why do some scientists and archeologists think that volta was not the first person to build a battery

What property of a wave determines the pitch? what property of a wave determines the volume? describe your reasoning and include the ways the simulation and tone generator influenced your thinking. will mark brainiest if your answer does make sense to the question asked.