What is the energy in electron-volts (eV) of a photon of green light that has a wavelength of 520 nm? (1.0 m = 1.0 * 10^-9m)

3.8 * 10^-19eV

3.4 * 10^-40eV

2.4eV

2.2 * 10^-21eV

A sound wave in air has a frequency of 262 Hz and travels at a speed of 330 m/s. What is the wavelength of this wave?

Almost all maps have these four things:

The element hydrogen has the highest specific heat of all elements. At a temperature of 25°C, hydrogen's specific heat capacity is 14300J / (kg K). If the temperature of a.

2H2+O2---> 2H2O can be classified as what type of reaction? A. Both synthesis and combustion B. Only synthesis C. Only combustion D. Something other than synthesis or combustion

What is the Doppler effect, and how does it alter the way in which we perceive radiation?

What is the correct formula for Na + and (SO4) 2 - ? A. Na2SO4 B. Na2 (SO4) 2 C. NaSO4 D. NaSO6

which of the following objects is considered negatively charged A - one with excess electrons on the surface B - one with excess neutrons on the inside C - one with excess protons on the inside D - one with excess protons on the surface

In general, how do the densities of a material in solid and liquid form compare?

Alana summarized what happens when a ball sitting on top of a grassy hill rolls down the hill. The motionless ball has potential energy. Once the ball starts to roll down the hill, new kinetic energy is made.

What unit is commonly used when measuring the energy rating of an electrical appliance