Ihave no idea how to find this solution. i dont know the formula.

brass is a mixture of copper and zinc. it that has a specific gravity of 8.5. a 5-gallon bucket of water weighs 40 pounds. how much would a 5-gallon bucket of brass weigh?

Which of the following is true about fossils? a. the relative age of fossils cannot be determined from their position in sedimentary layers. b. fossils found in lower layers of sedimentary rock are as old as fossils found in upper layers of sedimentary rock. c. fossils found in upper layers of sedimentary rock are older than fossils found in lower layers of sedimentary rock. d. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock.

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.

This diagram show the most important texts of.