Using what you know about central angles and/or inscribed angles (NOT using the formula), describe how you would find the measure of angle U in terms of the arcs of the circle shown.   Click ‘True’ when finished.

41) What happens to the core of a star after a planetary nebula occurs?

An unknown metal M forms a soluble compound, M(NO3)2. A solution of M(NO3)2 is electrolyzed. When a constant current of 4.50 amperes is applied for 35.0 minutes, 3.11 grams of the metal M is deposited. Calculate the molar mass of M and identify the metal.  To receive full credit, report your answers below and submit a picture of your work to the Exam 4 Solutions, Extra Credit and Partial Credit assignment AFTER SUBMITTING COMPLETED Midterm. Answers:  

The following results were obtained for the below reaction in experiments designed for the study of the rate of the reaction. (12 pts) A + B=> 2C Experiment Initial concentrations  mol/L                                              Rate of disappearance of  A  (M/sec) 1 0.030 0.030 2.0×10-3 2 0.030 0.060 8.0×10-3 4 0.060 0.030 4.0×10-3 Use the initial rates method to determine the order of the reaction with respect to A. (3pts) Use the initial rates method to determine the order of the reaction with respect to B. (3pts) Use line 1 to calculate the value of the rate constant, k for the reaction. Include units. (1pt) Write the expression for the differential rate law for this reaction.(1pt) What will be the initial rate of disappearance of A, if an experiment is attempted with A and B both equal to 0.060M?(1pt) Write the integrated rate law for the concentration of A.(1pt ) Calculate the half-life for  A (1pt) Calculate the concentration of A in experiment 2 after 60 seconds (1 pt) To receive full credit, report your answers below and submit a picture of your work to the Exam 4 Solutions, Extra Credit and Partial Credit assignment AFTER SUBMITTING COMPLETED Midterm. Answers:

11) The main-sequence turnoff point of a star cluster tells us the cluster’s

39) Compared to the star it evolved from, a red giant is

Do not answer or submit anything here. The grade for this question will be based on the work you upload to Exam 4 Solutions, Extra Credit and Partial Credit assignment AFTER SUBMITTING COMPLETED Midterm.

6) Parallel light beams only remain parallel to each other in a space-time with _________ geometry.

14) A fermion is a particle with

Paul contracts to buy a Quality-brand computer from Royal Networking Systems for $5,000, but Royal fails to deliver. Paul buys the computer elsewhere for $6,700. Paul’s measure of damages is ________. (Choose the most complete answer.)