Orders of magnitude

EXECUTIVE SUMMARY 1. The online personals industry took its first breath in 1992. In the beginning, the industry experienced very slow growth. Nonetheless, by 2005, due to positive changes in public perception, the industry was booming. By the end of 2007, the industry had grown to a $900 million market. Observers expect the market size to double by 2012. The industry serves its customers by enhancing the ‘self-actualization’ stage of an individual’s (Maslow’s) ‘Hierarchy of Needs.’ It seeks

and objects such as launch adapter and lens covers, which are mission related. The other 44% is originating from 140 on-orbit fragmentations. These events have been the main source that has generated a population of objects larger than 1cm on the order of 70000 to 150000. Efforts to provide a definitive assessment of this problem have been directed toward analyzing the

只限閱卷員參閱 FOR MARKERS’ USE ONLY May 4, 2012 香港考試及評核局 HONG KONG EXAMINATIONS AND ASSESSMENT AUTHORITY 2012 年香港中學文憑考試 HONG KONG DIPLOMA OF SECONDARY EDUCATION EXAMINATION 2012 物理 香港中學文憑考試 試卷一乙 PHYSICS HKDSE PAPER 1B 本評卷參考乃考評局專為今年本科考試而編寫，供閱卷員參考 之用。閱卷員在完成閱卷工作後，若將本評卷參考提供其任教 會考班的本科同事參閱，本局不表反對，但須切記，在任何情 況下均不得容許本評卷參考落入學生手中。學生若索閱或求取 此等文件，閱卷員/教師應嚴詞拒絕，因學生極可能將評卷參 考視為標準答案，以致但知硬背死記，活剝生吞。這種落伍的 學習態度，既不符現代教育原則，亦有違考試著重理解能力與 運用技巧之旨。因此，本局籲請各閱卷員/教師通力合作，堅 守上述原則。 This marking scheme has been prepared by the Hong Kong

Objective: This project focuses on water resources in the region of ancient Eastern Arabia at the site of As Safah, Oman. This site has archaeological evidence of metallurgical activities in the Iron Age (c. 900-600 BCE), like kilns, furnaces and metal objects, still in very good condition. However, the site is very far away from any natural water sources in the present day. Excavators did find sediment and fluvial deposits suggesting that occasionally in the past the site had an inflow of water

Abstract Inverted topography in a different of scales from large scale to fine scale has been observed in numerous localities on Martian surface. Also, Inverted wadis in Western Desert of Egypt in seven sites cover an area of about 26.000 square kilometers, provide us a natural museum for a different of scales, mechanisms of development, and planimetric patterns. Therefore, we carried out field study in four sites of inverted wadis in Gabal El-Na’aloon, east of Baharyia, west of Ghard Abu Moharik

The Change in Resistance of a Carbon Paper Introduction The aim of this experiment is to see how the resistance of a carbon-coated piece of paper changes when the different variables change. Variables A variable is a change in an experiment that could alter the outcome/results of that experiment, and for this experiment the main variables are type of paper, width of paper, length of paper, and temperature. We are going to be studying how changing

*Running title: Isolation and Characterization of Avian Lactate Dehydrogenase To whom correspondence should be addressed Sylvia DaoudKinze and James Proestes, Department of Biochemistry, Portland State University Professor, Portland Oregon, 97207-0751; E-mail: sylviakinzie@gmail.com and proestoj@gmail.com ------------------------------------------------- Keywords: Lactate, Dehydrogenase, Avian, Bradford Assay, Affinity Column Background: Lactate Dehydrogenase also known as LDH is an important

What is the Scale of Chemistry? Chemistry is the study of matter and its transformations. Everything that you can taste, touch, see or smell is composed of chemicals. All the chemicals around you are made from various combinations of the elements on the periodic table. These elements can range considerably in size; specifically, atoms at the top of the periodic table are smaller than those near the bottom. The study of atoms and the reasons for the trend in their sizes will be covered in class

1. If 5 times the value of a number is increased by 3, the result is 28. What is the number? 5x+3=28 5x=25 x=5 The answer is 5 2. If 4 times the reciprocal of a number is 3 more than 5/2 times the reciprocal of that number, find the number. 4*(1/x)=(5/2)*(1/x)+3 4/x=(5/2x)+3 (8/2x)=(5/2x)+3 (8/2x)-(5/2x)=3 (3/2x)=3 x=1/2 The answer would be x=1/2 3. John had $30,000 to invest. He invested part of this money in bonds paying 12% annual simple interest and the rest of the money in a savings

Lab Report 1 Purpose To develop an understanding of the metric system and use it to measure common objects. To also learn about how to report uncertainty in your measurements. Lab Observations Most flat objects do not consist of uncertainty. When we measured round objects, because of its shape, it contained uncertainty. Lab Answers 1. Using a metric ruler, determine the length of the items in Table 1.1 below: In the final column, you are to estimate your measurement precision. To do