I. Choose the Correct Answer 1. Which of the following quantities are independent of the choice of inertial frame? (There may be more than one correct answer) (A)Velocity (B)Acceleration (C)Force (D)Work Solution: In all the inertial frame, the forces acted on a body are same,=ma=F'=ma', therefore the force and acceleration are independent of the choice of inertial frame
1.I'm an office worker.我是上班族。 2. work for the government.我在政府机关做事。 3.' m happy to meet you.很高兴见到你 4. like your sense of humor.我喜欢你的幽默感。 5.Im glad to see you again.很高兴再次见到你
Molecular Biology of the Gene, 5/E -- Watson et al. (2004) Part I: Chemistry and Genetics Part: Maintenance of the Genome Part Ill: Expression of the Genome Part IV: Regulation Part V: Methods
Microbial molecular biology and genetics A clone: a population of cells that are derived asexually from a parental cell and are genetically identical. Genome: all the genes present in cell or virus. Central dogma:dna→rna→ protein transcription translation
October 22, 2001 Personal IdentityⅢ . Review soul criterion and body criterion Soul criterion: x is the same person as y iff and y have the same soul. Problems: i)There is no way to establish body-soul correlations; and no way to establish personality correlations. So soul criterion doesn't make sense of our practices of recognizing and identifying people ii)We have no special access to souls, so even in our own case we can't be sure it's the same soul \inside\ us whenever we are conscious. ii) The problem of identity is \pushed back\: what is it for person-stage x to have the same soul as person-stage y? What makes for sameness of souls? Body criterion: x is the same person as y iff x and y have the same living human body
Service times Poisson arrivals at rate n Service time has arbitrary distribution with given E[X] and E[X2I Service times are independent and identically distributed (ID) Independent of arrival times E[service time]=1/u Single Server queue
MIT OCW DATA COMMUNICATION CONTENTS Lectures 2 The Data Link Layer: Framing and Error Detection Lectures 3 4 The Data link layer: arQ Protocols Lectures 5 6 Introduction to Queueing Theory Lectures 8&9 M/G/I Queues
