Three 4-kg packages A, B, and C are placed on a conveyor belt that is at rest. Between the belt and both packages A and C the coefficients of friction are 0.30 s = and 0.20; k = between package B and the belt the coefficients are 0.10 s = and 0.08. k = The packages are placed on the belt so that they are in contact with each other and at rest. Determine which, if any, of the packages will move and the friction force acting on each package.

Chemical Tools: Experimentation and Measurement • Recognize the seven basic SI units of measure. • Give the numerical equivalent of the common metric prefixes used with these units. • Express numbers in scientific notation. • Determine the number of significant digits in a measured quantity. • State the result of a calculation involving measured quantities to the correct number of significant digits. • Convert temperatures between the Celsius and Kelvin scales. • Relate density to mass and volume. • Set up and solve problems using dimensional analysis. CHAPTER 1 – The Structure and Stability of Atoms • Give the symbol and name of the first 36 elements of the periodic table. • Identify the group and period to which an element belongs. • Identify the regions of the periodic ta