a beam from a flashlight hits a piece of black coal and a piece of metal located 1 m away. the metal appears shiny compared to the coal. which of the following choices correctly explains how the light interacts with the coal and metal in this situation?

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

Where should a carbon monoxide detector be mounted?

What ions are formed when hcl dissolves in water?