What would a ship sailing away from you look like if Earth were flat? If Earth were round?

How can you approximate the number of calories required to keep you in energy balance?

In some plants, pointed leaves (p) are dominant over rounded leaves (p). a plant with a genotype of pp

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury