What type of solution creates bubbles of hydrogen gas when iron is placed in it? a basic solution. an acidic solution. an indicator solution. a supersaturated solution.

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?