Two balls are dropped from identical heights atop of a high school at the same time. The mass of one ball is 5kg while the other is 15kg. Ignoring air resistance which object has more inertia

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.

Which of the following units is not an official si unit? mole liter kilogram ampere