1) If the weight of 1 liter of water is defined to be 1 kilogram,how many pounds does 1 cubic feet of water weigh?

2)The carat is a commonly used unit of mass forgemstones. How many carats are there in 16 ounces?

3)The sound of thunder from a bolt of lightning is heard sometime after the flash is seen. If the speed of sound is 330 m/s andthe time between flash and thunder is 5 seconds, what is thedistance to the lightning bolt in feet?