You must raise the weight to a height of 10 meters. You cannot do it! Thinking back to what you have learned in science class, you set up the pulley you see here. How does using this pulley reduce the force needed to lift the weight 10 meters?

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.

What are some examples of anthropogenic atmospheric particulates?