Two students are moving 90-N cartons of books from the floor to a platform. One student moves 11 cartons in 6 minutes. The other student moves 11, cartons in 5 minutes. Which student does more work on her cartons? Explain your answer.​

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

Which describes increasing the efficiency of energy resource

If the area of a square has increased by a factor of 16, by how much has each side increased?