The binding energy of electrons in a metal is 193 kJ/mol. Determine the threshold frequency for this metal.

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two