Blue light in the visible spectrum has a frequency of approximately 630 THerz (I THerz = 102 cycles/sec). What is the wavelength of this light?

What was bohr’s contribution to the planetary model

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

In science class richard learns that a substance has a boiling point of 230 fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of his substance in degrees celsius