A 2-kilogram block slides along a horizontal, frictionless surface at 5.0 meters per second for 4 seconds. The magnitude of the block’s momentum is

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?

Acar travels 40m in 8 seconds find the car speed

Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two