Answer: For what values of a and b is continuous at every

Chemistry 11
An iron bar weighed 664 g. After the bar had been standing in moist air for a month, exactly one-eighth of the iron turned to rust \(\left(\mathrm{Fe}_{2} \mathrm{O}_{3}\right)\). Calculate the final mass of the iron bar and rust.

General Chemistry: Principles and Modern Applications 10
. Which of the following quantities has the greatest mass? (a) 752 mL of water at 20 C (b) 1.05 L of ethanol at 20 C (c) 750 g of chloroform at 20 C (d) a cube of balsa wood that is 19.20 cm on edge

Chemistry 9
A certain microwave oven delivers 750. watts (J/s) of power to a coffee cup containing 50.0 g water at 25.08C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, how many photons must be absorbed, to make the water boil? The specific heat capacity of water is 4.18 J/8C ? g

Essentials of Statistics for the Behavioral Sciences 10
It appears that there is a significant relationship between cognitive ability and social status, at least for birds. Boogert, Reader, and Laland (2006) measured social status and individual learning ability for a group of starlings. The following data represent results similar to those obtained in th

Macroeconomics 22nd
Explain the law of supply. Why does the supply curve slope upward? How is the market supply curve derived from the sup- ply curves of individual producers?

Urban Economics 8
In Figure 121 , suppose the total achievement curve can be described as Achievement , so the marginal-benefit curve for teachers can be described as marginal bene?t . a. Compute the ef?cient number of teachers for the following teacher wages: {6, 10}. b. Illustrate with a graph like the one sho

Urban Economics 8
Fruit Fly Economist According to Frieda, the talking fruit fl y, A rent-control law implemented today will simply redistribute income from property owners to consumers. I will never see any deadweight loss from the rent-control program. a. After googling fruit fl y lifespan, draw a supply/demand grap

Introductory Chemistry: A Foundation 9
Write the complete orbital diagram for each of the following elements, using boxes to represent orbitals and arrows to represent electrons. a. aluminum, Z 5 13 b. phosphorus, Z 5 15 c. bromine, Z 5 35 d. argon, Z 5 18