Use the term "concentration" in a sentence about liquids that conveys its meaning. (9 points) least three examplaes of a selectively permeable material or iterm explan where it is found or used and why a selectively permeable material is needed

How have the competing explanations' experiments on atoms affected the development of the atomic model?

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping