A photon with a wavelength of 2.29 * 10^-7 meter strikes a mercury atom in the ground state.

Determine the energy, in electronvolts, of this photon.

In regions where few species existed before or where species were wiped out what occurs?

Where would aliens be if they really do exist here on Earth?

What does it mean to say the momentum is conserved?

In 1-2 sentences describe how your nose cleans the air you inhale. like do this for someone that's in 3rd grade don't make it to advance. i don't know how to word it.

A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the velocity of the ball the instant before it it hits the ground

The difference in electric potential between a thunder cloud and the ground is 1.53 108 V. Electrons move from the ground which is at a lower potential to the cloud which is at a higher potential.

A vitamin called folic acid is very important for neural tube development, which is the development of the baby's

Which vocabulary term is survival of the fittest

An object weighs 32 newtons. What is its mass if a gravitometer indicates that g = 8.25 m/s2?

At what stage of a reaction do atoms have the highest energy? a. reactant stage b. product stage c. transition state stage d. The stage of highest energy depends on the atom.