I need help with these 2 questions.

For a wave, what term is defined as the time elapsed between two successive crests, or two successive troughs, passing by the same point in space? O wavelength O frequency O period O wave velocity O amplitudeHow much heat is required to raise the temperature of 0.295 kg of water from 19.0 C to 31.2 C? Express your answer in joules. Templates Symbols undo redo reset keyboard shortcuts help, Q = J Submit Request Answer Part B If this amount of heat is added to an equal mass of mercury that is initially at 19.0 C, what is its final temperature? Express your answer in degrees Celsius. Templates Symbols undo redo reset keyboard shortcuts help, Tf= Submit Request