Can someone pls help :) if we were to multiply 20 meters per second times 5 seconds, we would end up with an answer that only has meters as the units. Briefly describe why this is.

Can someone explain what she's asking i don't understand the question, like what do i have to describe and what should i write about

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

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

Why is the structure of molecule important to its function?