What is the best example of diffraction?

A. A straw that looks broken in a glass of water.

B. A reflection of a face looking in a mirror.

C. The rainbow colors we see as we look at a rainbow in the sky.

D. The rainbow colors we see as we look at the back of a CD.

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table