Question 10 8.5 5 Long-run average cost Long-run marginal cost Marginal revenue for firm 3 250 300 Figure 112 Figure 11.2 shows demand and costs for a monopolistically competitive firm. At the profit maximizing output level A. the firm is earning a positive economic profit and more firms are expected to enter the market. B. the firm is earning a zero economic profit and no firms are expected to enter the market. OC. the firm is earning a negative economic profit and more firms are expected to leave the market. OD. There is not sufficient information.

6. Special-interest group effect The following graph shows the market for paint. Use the graph input tool to help you answer the following questions. You will not be graded on any changes you make to this graph. Note: Once you enter a value in a white field, the graph and any corresponding amounts in the grey field will change accordingly. Graph Input Tool 1 Suppl 88 Price (Dollars per gallon) Quantity demanded (Millions of gallons Surplus Millions of gallons) Quantity Suppli (Mions of gallons) 13 5 0 Shortage (Millions of pallons) 75 PRICE (Dolars per gallon) Demand 100 20 0 QUANTITY Milions of gation) The market price of paint without government intervention is per gallon Consider legislation that doesn't allow the price of paint to be below $6 per gallon and stipulates that the government buy any surplus paint produced at that price. In order to raise the price to $6 per gallon, the government would need to buy million gallons of paint, which would cost the government million Suppose there are only a few paint producers who would benefit from this legislation and millions of consumers who would suffer through higher prices. In this case, legislation imposing price supports at $6 per gallon would mean which of the following? The legislation will probably pass because its benefits are concentrated while its costs are widespread. The legislation will be easily defeated because the increased price of paint would hurt millions of consumers, who would not reelect their representatives The legislation may or may not pass since the benefits and costs of the legislation are concentrated among similarly sized groups The legislation should pass because it is economically efficient, but it probably won't because consumers don't understand enough about economics

Shown in the figure below is a capacitor. Each plate has an area of A = 1.4e-02 m2 and has a gap d = 6.6e-04 meters. Att filled with a dielectric of constant K = 3.87. The thickness of the dielectric layer is a = 2.64e-04 meters leaving a free space Empty Capacitor Partly Filled Capacitor Area = A dielectric constant K d Write the FORMULA for the capacitance of the empty capacitor. 1 Determine the capacitance of the empty capacitor Cempty = Farads When you partly fill the capacitor, which of these best describes the new configuration: Parallel Series Both series and parallel Neither series nor parallel e-02 m2 and has a gap d = 6.62-04 meters. At the first moment, the capacitor is empty. At the second moment is it partly ayer is a = 2.64e-04 meters leaving a free space of b = 3.96e-04 meters. dielectric constant Farads - configuration: Determine the formula for the partly filled capacitor Chilled = Determine the value of the partly filled capacitor Chilled = Farads NOTE: Decide whether the partly filled capacitor acts like parallel or series by following the charge: . If the charge splits between the caps, parallel. • If the charge is the same on both caps, series, • The formula for the filled capacitor should use only the distances a and b (NOT d).

< 1 of 1 Figure 120 грm 2.0 m The 300 g bar is rotating as shown in (Figure 1). Part A What is the magnitude of the angular momentum of the bar? ? kg m² /s Submit Request Answer Part B What is the direction of the angular momentum of the bar? O into the page O out of the page

v MI 7. Let (r) = for r e A := (0,0) (i) Find the pointwise limit f off (ii) Show that each f, is bounded on A but the pointwise limit f of the sequence is not bounded on A. (ii) Decide whether or not the convergence in () is uniform, prove your claim. (iv) use the e-strip to prove your claim in (iii).

A solid disk, a hoop, and a solid sphere are released at the same time at the top of an inclined ramp. Each has mass M and radius R. They all roll without slipping. In what order (fastest to slowest) do they reach the bottom of the ramp, if the moments of inertia of the disk, hoop, and sphere are ½ MR2, MR2, and 2/5 MR2? A) disk, hoop, sphere B) disk, sphere, hoop C) sphere, hoop, disk D) hoop, sphere, disk E) sphere, disk, hoop

R W R3 ww 10 12 ww R2 1 Write down the Kirchhoff Junction equation and solve it for I; in terms of 12 and 13. Write the result here: Ij = write down the Kirchhoff Loop equation for a loop that starts at the lower left corner and follows the perimeter of the circuit diagram clockwise. 0 write down the Kirchhoff Loop equation for a loop that starts at the lower left corner and touches the components 10V, Ry, 4V, and Ry O The resistors in the circuit have the following values . - R2 • Ry=60 Ry=130 Solve for all the following (some answers may be negative); 11 - Amperes 12 Amperes 13 Amperes NOTE: Forthin