A student was traveling to see his grandmother who lives 15 miles north of his home. He started from rest and maintained a pace of 4 m/s before stopping at his grandmother’s house for lunch. (8.6B) Which of the following best describes the speed, velocity, and acceleration of the student’s walk?

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

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.

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?