1) Diameter of a nickel coin is measured as 2.12 cm, its height (thickness) is measured as 0.19 cm and weight 5.1 grams. A) Calculate the density of the coin with appropriate significant figures and compare it with the density of pure nickel in terms of percent error . Could your coin be pure metal? B) Based on the measurement given above, what is the likely precision in diameter (delta d), precision of height (delta h) and precision in mass (delta m). 2) In afree fall experiment, when you plot (height) in meters versus time in second squared, you obtain best fit TREMNDLIME equation as y= 4.85 (x*%?) R*2=0.98 A} Find the percent error between the theoretical gravitational acceleration and B) What type of trendline is this. Is there another way to obtain experimental gravitational acceleration using the same data 3} Inacoplanar force table experiment two forces F1 and F2 is balanced by a third force F3. F1=4N and it makes 0 degree with the x-axis F2= 4.5 N and it makes 90 degree with the x-axis (which means that it Is towards the y-axis) F3 = 6 N and it makes 275 degrees with the x-axis Calculate resultant force of F1 + F2 using vector addition and compare with F3. Does your results satisfy egilibrium conditions or there is a significant error? 4) In an Atwoods Machine lab with m1 = 0,100 and m2 = 0.150 observed acceleration is 1.92 m/fs"2, A} Compare the experimental acceleration with the a(theoretical) in terms of percent error, B) What is your dependent variable, independent variable and control variables for procedure A 5) We decided to use Kinetic friction setup in order to observe static friction. (System is not accelerating) Using the free body diagram at page 60 write force equilibrium equations for both masses. What is the dependent, independent and control variables, what is your precision 6) For the ballistic pendulum lab there are several processes. a) Spring gun is loaded b) Spring gun launches the ball c) Ball collides with the catcher d) Ball+catcher system swings the pendulum.. Fill in the blanks in the table below by indicating whether if momentum or energy is conserved? Explain how the energy is transformed (such as kinetic to potential, kinetic to heat etc) Process Momentum m Sprmg gun is loa ded 7) For ball rolling down lab A) What are the dependent, independent and control variables A) What is the theory that wwe are verifying 9) Datais given as Velocity Observed (m/s) A) Plot he graphUsing the theur'o,.r mgh=1/2 m v*2 , what would be the appropriate trendline for this data 10} For the vibrating spring lab, calculate k coefficient for one of the data. Compare the two methods