Chemistry and Biochemistry Academy

  1) A book on a table has a weight of 9.0 N. A force Ps = 3.0 N is required to start it sliding. But to keep it sliding at a constant speed, a minimum force Pk = 2.0 N is required.  Find: a) the coefficient of static friction and b) the coefficient of kinetic friction. Ans. a. 0.33 b. 0.22  21) An object is moving on a curved path at a linear speed v = 30.0 m/s in a circle of radius r = 2.00 m. The object’s mass is m = 0.100 kg. Find the centripetal force. Ans. 45.0 N   29) The mass of the earth is, ME = 5.98 x 1024 kg, and the mass of the moon, MM = 7.36 x 1022 kg. The distance between their centers is 3.82 x 108 m. How far from the center of the earth is the center of mass of the Earth-Moon system? Ans. 4.64 x 106 m. [the radius is the earth is 6.37 x 106 m, placing the center of mass inside the earth.] SOLUTIONS  (1) (a) The coefficient of static motion is described as the maximum ratio obtained between applied force and the normal force of a body in a static position. In other

  The purpose of this assignment is for you to organize your research and writing into a logical order that will visually display the sequence of your argument and the thoughtful flow of ideas. Tasks(s): Remember that you must write your outline in complete sentences. You may use this template, or you may type your own. You do not have to answer each of these questions right now, but you must be able to give a full response to what you will be including. Use this outline to organize your outline. Introduction How will you set up your report? What background or historical information will you provide regarding your company, plan, etc.? Problem Statement What is the problem you are addressing? Why is this a problem? For whom is this a problem? Purpose Statement What is your reason for writing this report? What do you hope to accomplish? Scope What will be included in your report? What information will not be included in your report? Discussion Section Wh