A minority of elements on the right side of the periodic table that tend to form the negative charges

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring