A photon has 8.0 x 10-15 J of energy. Planck's constant is 6.63 x 10-34 J•s.
What is the frequency of the photon?
O 1.21 x 1019 Hz
O 8.3 x 10-20 Hz
O 1.21 x 10-19 Hz
O 8.3 x 1020 Hz

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.