What is the wavelength (in nanometers) of a photon emitted during a transition from ni = 6 to nf = 3 state in the H atom? x 10 nm

Modern weaponry has increased the number of deaths in wars and violent conflicts.

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.