A man who weighs 900N stands in an elevator on a scale and it reads 1000N. What direction is the elevator accelerating and what is the acceleration of the elevator?

What is the chemical formula of the following compound

This drawing shows a human body system. what is the primary function of this body system?

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)