A train covers a distance of 480 mi in 8 hours. If it travels at a constant speed, how fast is it traveling?

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

In a system, when potential energy decreases, then entropy also decreases. true false

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?