The work function of a specific metal is 3.11 eV. Violet light of wavelength 370 nm ejects electrons with a maximum kinetic energy of 0.81 eV from a certain metal. Required:
What is the binding energy of electrons to metal?

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

What is the molar mass of ca(cio4)2

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false