What is the kinetic energy of a 2kg snowball thrown through the air at 5 m/s?

Astate of matter all that has define volume and can flow is a(n)

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?