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An Introduction to Thermal Physics 1
Problem 5P For an Einstein solid with each of the following values of N and q, list all of the possible microstates, count them, and verify below formula. (a) N = 3, q = 4 (b) N = 3, q = 5 (c) N = 3, q = 6 (d) N = 4, q = 2 (e) N = 4, q = 3 (f) N = 1, q = anything (g) N = anything, q = 1 Formula:

An Introduction to Chemistry 2
Problem 23QP Diiodine pentoxide is used in respirators to remove carbon monoxide from air: I2O5(s) + 5CO(g) ? I2(s) + 5CO2(g) (a) What mass of carbon monoxide could be removed from air by a respirator that contains 50.0 g of diiodine pentoxide? (b) What mass of I2 would remain in the respirator?

Chemistry 11
Calculate the vapor pressure of a solution made by dissolving 82.4g of urea (molar mass = 60.06 g/mol)in 212 mL of water at 35C. What is the vapor-pressure lowering?

OpenIntro Statistics 3
A survey of 55 Duke University students asked about their GPA, number of hours they study at night, number of nights they go out, and their gender. Summary output of the regression model is shown below. Note that male is coded as 1. (a) Calculate a 95% confidence interval for the coefficient of

Statistics: Informed Decisions Using Data 4
Suppose there is sufficient evidence to reject H0: m1 = m2 = m3 = m4 using a one-way ANOVA. The mean square error from ANOVA is determined to be 26.2. The sample means are x1 = 42.6, x2 = 49.1, x3 = 46.8, x4 = 63.7, with n1 = n2 = n3 = n4 = 6. Use Tukeys test to determine which pairwise means are sig

Human Biology 11
Jogging is considered aerobic exercise because the cardio-vascular system (heart and blood vessels) can adjust to supply the oxygen needs of working cells. In contrast, sprinting the 100-meter dash might be called anaerobic (lacking oxygen) exercise, and golf non aerobic exercise. Explain these last

College Physics: Explore and Apply 2
How can the peephole lens in a hotel door have an approximately 180 view? (a) The light moves straight through the lens into the eye. (b) Light from about 908 from the straight-ahead direction is refracted into the observers eye if very close to the lens. (c) Light from about 908 from the strai