The law of conservation of energy states that energy cannot be created or destroyed . Under what condition is potential energy totally converted to kinetic energy?

Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

Amira pulls a 3 pound wagon 4 feet. how much work has she done?