How much force is required to lift a rock a vertical distance of 8 m if 80 j of work were done

In an energy pyramid, which level has the most available energy?

Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.