(III) The Two isotopes of uranium, 235U and 238U (the

Organic Chemistry 8
Problem 49SP When tert-butyl bromide is heated with an equal amount of ethanol in an inert solvent, one of the products is ethyl tert-butyl ether. (a) What happens to the reaction rate if the concentration of ethanol is doubled? (b) What happens to the rate if the concentration of tert-butyl bromid

Physics: Principles with Applications 6
A heavy rainstorm dumps 1.0 cm of rain on a city 5 km wide and 8 km long in a 2-h period. How many metric tons (1 metric ton = 103 kg) of water fell on the city? [\(1\ \text{cm}^3\) of water has a mass of \(1\ \text{gram}=10^{-3}\ \text{kg}\).] How many gallons of water was this?

Sears and Zemansky's University Physics with Modern Physics 13
Problem 36E The following measurements were made on a Thyrite resistor: I (A) 0.50 1.00 2.00 4.00 Vab (V) 2.55 3.11 3.77 4.58 (a) Graph Vab as a function of I. (b) Does Thyrite obey Ohms law? How can you tell? (c) Graph the resistance R = Vab/I as a function of I.

Biology 8
Explain how table salt has emergent properties.

Physics for Scientists and Engineers with Modern Physics 9
Why is the following situation impossible? In the Bohr model of the hydrogen atom, an electron moves in a circular orbit about a proton. The model states that the electron can exist only in certain allowed orbits around the proton: those whose radius r satisfies r 5 n2 (0.052 9 nm), where n 5 1, 2, 3

Elementary Statistics: A Step by Step Approach 8th ed. 8
Cell Phone Lifetimes A recent study of the lifetimes of cell phones found the average is 24.3 months. The standard deviation is 2.6 months. If a company provides its 33 employees with a cell phone, find the probability that the mean lifetime of these phones will be less than 23.8 months. Assume cell

Biology: The Dynamics of Life 1
Why are most fossils found in sedimentary rocks?

Introduction to Business
After seeing a Quiznos franchise recruitment infomercial to recruit franchisees, you are tempted to apply to open your own Quiznos sub shop. However, your research on the company turns up some disturbing information. Many current franchisees are unhappy with the companys management and practices, amo