Solution: Revolution About Horizontal and Vertical LinesUse

Introductory Chemistry 5
How many moles of atoms are in each elemental sample? (a) 1.34 g Zn (b) 24.9 g Ar (c) 72.5 g Ta (d) 0.0223 g Li

An Introduction to Thermal Physics 1
Problem 16P Suppose you flip 1000 coins. a) What is the probability of getting exactly 500 heads and 500 tails? (Hint: First write down a formula for the total number of possible outcomes. Then, to determine the multiplicity of the 500-500 macrostate, use Stirlings approximation. If you have a fancy

Chemistry 11
How many grams of gold (Au) are there in 15.3 moles of Au?

OpenIntro Statistics 3
Buteyko method, study components. The Buteyko method is a shallow breathing technique developed by Konstantin Buteyko, a Russian doctor, in 1952. Anecdotal evidence suggests that the Buteyko method can reduce asthma symptoms and improve quality of life. In a scientific study to determine the eectiven

Biology for AP Courses
What is the advantage of sexual reproduction? a. Sexual reproduction allows animals to conserve resources and reproduce only during optimal conditions. b. Sexual reproduction results in offspring with diverse phenotypes, which may enhance survival of a population in a changing environment. c. Sexual

Urban Economics 8
In Metro, there are three types of houses: E (expensive), M (medium), and C (cheap). Each household prefers the same spending on public education. Schools are initially financed with the property tax based on market value, and initially there are three school districts. Suppose the property tax is re

Principles of Economics 9
Ernie owns a water pump. Because pumping large amounts of water is harder than pumping small amounts, the cost of producing a bottle of water rises as he pumps more. Here is the cost he incurs to produce each bottle of water: Cost of first bottle - $1 Cost of second bottle - $3 Cost of third bottle