A photon has 3.4 x 10-18 joules of energy. Planck's constant is 6.63 x 10-34 Jos.
What is the frequency of the photon?
5.12 x 10^-15 Hz
1.95 x 10^16 Hz
5.12 x 10^15 Hz
1.95 x 10^-16 Hz

What is the difference between an igneous, sedimentary and metamorphic rock

In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the females possess the trait. mating two of the f1 fish fails to produce females with the trait. explain the inheritance pattern of the trait.

Describe the two types of vascular tissue