Calculate the frequency and energy of violent light having wavelength 400nm​

Evaluate this exponential expression,8. (2 + 3)2 – 42

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Which would freeze at a higher temperature: the great salt lake or lake tahoe? a. lake tahoe would freeze at a higher temperature. b. the great salt lake would freeze at a higher temperature. c. both lakes would freeze at the same temperature.