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1. Think about friction. A book sliding across a level table comes to a stop. Because systems always go towards configurations of higher entropy, the final stopped state must have higher entropy than the preceding moving state. Can you explain the reason for this in terms of molecular motion? Explain why it would be extremely improbable for the book to subsequently slide back to where it started from.
2. When a book slides across a table and comes to a stop, both systems (i.e., the book and the table top) get slightly warmer as a result of the friction, so the internal energy of both systems increases. How can this happen if energy is conserved?
the wall thickness of 20 glass 2-liter bottles was measured by a quality control engineer. the sample mean was xbar4.05
Some assembly required. A company that markets build-it-yourself furniture sells a computer desk that is advertised with the claim less than an hour.
Find a 95% confidence interval for the mean total cost of all customer orders. Then do this separately for each of the four regions.
Suppose a medical researcher finds a negative correlation between amount of weekly walking and the incidence of heart disease for people over 50 years old.
let x be the damage incurred in in a certain type of accident during a given year. possible x values are 0 1000 5000
Give the Z- score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected
Criticize the following definitions in light of the eight rules for lexical definitions:- "Gammon" means, in backgammon, a victory in which one player defeats another before he can remove any of his men from the board.
you are picking a bouquet of 20 flowers for your mother at random from a garden with 25 coneflowers 35 daisies and 42
A product goes through 20 independent operations. For each operation, the first-pass yield is 95%. What is the rolled throughput yield for the process?
Several variables were measured, including age, gender, level of education, income, job satisfaction score, and Machiavellian (‘‘Mach'') rating score. What type of data is produced by each of the variables measured?
A standard deviation of 1.5. The distribution is normal. What proportion of faculty consume an amount between 4 & 6 cups?
Adele Weiss manages the campus flower shop. Flowers must be ordered three days in advance from her supplier in Mexico. Advance sales are so small that Weiss has no way to estimate the demand for the red roses.
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