Problem 52GP
An angstrom (symbol A) Is a unit of length, defined as 10-10 which is on the order of the diameter of an atom, (a) How many nanometers are in 1.0 angstrom? (b) How many femtometers or fermis (the common unit of length in nuclear physics) are in 1.0 angstrom? (c) How many angstroms are in 1.0 m? (d) How many angstroms are in 1.0 light-year (see Problem 19)?
Week 8 March 7th March 9th Spring 2016 Chapter 11 Notes Measuring the Cost of Living ● Consumer Price Index (CPI) ○ Measure of the overall level of prices. ○ Measure of the overall cost of goods and services. ■ Bought by a typical consumer. ○ Bureau of Labor Statistics. ● Cost of living = ∑ Cost of each item = ∑ (Price x Quantity) ○ Where quantity is fixed (because most families do not change what they buy). ● Calculating CPI ○ Fix the basket. ■ Which prices are most important to the typical consumer. ■ Different weight. ○ Find the prices. ■ At each point in time. ○ Compute the basket’s cost. ■ Same basket of goods. ■ Isolate the effects of price changes. ○ Choose a base year and compute the CPI. ■ Base year = benchmark. ● Price of basket of goods and services in current year.
