can you help me with General Physics: Mechanics of Solids and Fluids?

Purpose To determine the coefficient of friction between two surfaces. Preliminaries A hand applies a horizontal force P on a box of mass M so that the box moves with constant velocity. There is P friction between the box and the surface it is on. M 1. Show that P = / Mg . Draw a FBD of the box and use Newton's Second Law to generate your system of equations. 2. Show that a graph of P (vertical axis) and M (horizontal axis) is linear. Let s = the slope of this graph, and b = the y-intercept. What are s and b?3. Using your slope value from the previous step, find an expression for , the coefficient of kinetic friction. Data Analysis 1. In the experiment, four different boxes are used, and the value of P is recorded. The results are shown below M= 0.760 kg P = 242N M= 1.21 kg P =4 02N M= 1.67 kg P =5.36N M= 2.18 kg P =7.04 N 2. Have EXCEL create a graph of P (vertical axis) and MY (horizontal axis), including an equation for your graph and R. value. Write out the equation below. What is the value of your slope? Include units. What is the value of your y-intercept? Include units. 3. Find the value of ch