(Answers to odd-numbered Conceptual Questions

Introductory Chemistry 5
What kinds of intermolecular forces are present in each substance? (a) \(\mathrm{NCl}_{3}\) (trigonal pyramidal) (b) \(\mathrm{NH}_{3}\) (trigonal pyramidal) (c) \(\mathrm{SiH}_{4}\) (tetrahedral) (d) \(\mathrm{CCl}_{4}\) (tetrahedral)

College Physics 1
Problem 5PE Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 20 rubs, at a distance of 7.50 cm per rub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warmed

Principles of General Chemistry 2
Problem 10P Why is a quantitative observation more useful than a non- quantitative one? Which of the following are quantitative? (a) The Sun rises in the east, (b) A person weighs one-sixth as much on the Moon as on Earth, (c) Ice floats on water, (d) A hand pump cannot draw water from a well more th

Classical Mechanics 0
Find the Lagrangian, the generalized momentum, and the Hamiltonian for a free particle (no forces at all) confined to move along the x axis. (Use x as your generalized coordinate.) Find and solve Hamilton's equations.

Myers' Psychology for AP 2
Which phrase best describes the concept of phonemes? a. Units of meaning in a language b. A form of syntax c. The basis of grammar d. Units of sound in a language e. A form of telegraphic speech

Numerical Analysis 9
The following four methods are proposed to compute 211/3. Rank them in order, based on their apparent speed of convergence, assuming p0 = 1. a. pn = 20pn1 + 21/p2 n1 21 b. pn = pn1 p3 n1 21 3p2 n1 c. pn = pn1 p4 n1 21pn1 p2 n1 21 d. pn =  21 pn1 1/2

Principles of Economics 6
Suppose the federal government requires beer drinkers to pay a $2 tax on each case of beer purchased. (In fact, both the federal and state governments impose beer taxes of some sort.) a. Draw a supply-and-demand diagram of the market for beer without the tax. Show the price paid by consumers, the pri

Biology 2e by Openstax
Figure 32.3 If the anther is missing, what type of reproductive structure will the flower be unable to produce? What term is used to describe an incomplete flower lacking the androecium? What term describes an incomplete flower lacking a gynoecium? Figure 32.3 The four main parts of the flower a