Static stability is all about the initial tendency of a body to return to its equilibrium state after being disturbed To have a statically stable equilibrium point, the vehicle must develop a restoring force/ moment to bring it back to the eq. condition Later on we will also deal with dynamic stability, which is concerned with the time history of the motion after the disturbance

(1)(2)B(3)D (4)D (5)B 6)b(7) (8)B (9)D(10)D (11)(12)B(13)B(14)C(15)A

H ydrocarbons that contain carbon-carbon triple bond are called alkynes. Non- cyclic alkynes have the molecular formula C, H2n-2. Acetylene (HCCH) is th simplest alkyne. We call compounds that have their triple bond at the end of a carbon chain(RC=CH) monosubstituted, or terminal, alkynes. Disubstituted alkynes (RCCR') are said to have internal triple bonds. You will see in this chapter that a car- bon-carbon triple bond is a functional group, reacting with many of the same reagents

SOLUTIONS TO TEXT PROBLEMS 2.1 A carbonyl group is=. Of the two carbonyl functions in prostaglandin E one belongs to the ketone family, the other to the carboxylic acids. Ketone OH Carboxylic acid functional group

Oxirane 2-(Chloromethyl)oxirane This compound is more commonly known as epichlorohydrin. (c)Epoxides may be named by adding the prefix epoxy to the IUPAC name of a parent compound specifying by number both atoms to which the oxygen is attached

02-01-05一级考试选择题(T) 1、因为计算机采用了“存储程序控制”机制,所以能够() A)高速运行B)正确运行C)自动运行D)进行逻辑思维 2、目前,PC及兼容机的内存可配置为128()。 A)KB B)GB C) TB D)MB 3、 Outlook Express的主要功能是() A)接收发送电子邮件 B)进行文档编辑 C)播放CD音乐 D)图形处理

SOLUTIONS TO TEXT PROBLEMS 19.1 (b) The four carbon atoms of crotonic acid form continuous chain. Because there is a double bond between C-2 and C-3, crotonic acid is one of the stereoisomers of 2-butenoic acid. The chem

SOLUTIONS TO TEXT PROBLEMS 24.(b) A benzyl group(C., CH2) is ortho to the phenolic hydroxyl group in o-benzylphenol. OH CH2C.Hs (c)Naphthalene is numbered as shown. 3-Nitro-I-naphth has a hydroxyl group at C-1 and a nitro group

The triacylglycerol shown in text Figure 26.2a, with an oleyl group at C-2 of the glycerol unit and two ste earyl groups at C-I and C-3, yields stearic and oleic acids in a 2 I molar ratio on hydrolysis. A constitutionally isomeric structure in which the oleyl group is attached to C-1 of glycerol would yield the same hydrolysis products

Palpitation may be defined as an awareness of the beating of the heart, an awareness most commonly brought about by a change in the heart's rhythm or rate or by an augmentation of its contractility