Use the Following to Answer Question

question 92

Multiple Choice

Use the following to answer question:
-Heat is added to a substance at a constant rate.The substance starts as a solid and is melted; the liquid is heated and vaporized; finally,the vapor is heated at constant volume.This process is shown in the graph.The specific heat at constant volume of the vapor can be found by

• A)multiplying the length of B (in seconds)by the rate at which heat is added,and dividing by the mass of the substance.
• B)multiplying the length of D (in seconds)by the rate at which heat is added,and dividing by the mass of the substance.
• C)dividing the rate at which heat is added by the product of the slope of A and the mass of the substance.
• D)dividing the rate at which heat is added by the product of the slope of C and the mass of the substance.
• E)dividing the rate at which heat is added by the product of the slope of E and the mass of the substance.

Recognize the role of autonomous spending in shifting the aggregate demand and expenditure curves.

Discern the implications of changes in the price level for exports, imports, and net exports.

Understand the concept of equilibrium in the context of aggregate expenditure and real GDP.

Grasp the nature of investment, including its autonomy from the level of saving.