The threshold frequency for metallic potassium is 5.46 × 10^14 s^-1. calculate the maximum kinetic energy and velocity that the emitted electron has when the wavelength of light shining on the potassium surface is 350 nm. (the mass of an electron is 9.11 × 10^-31 kg)

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space