Found 1080 related files. Current in page 1
“WHAT DO YOU WANT to be when you grow up?” More than one professional chef got his start with an Easy Bake Oven. Here are some ideas for children 8 and up that just may inspire your child to be a scientist, engineer or designer. Science. Thames & Kosmos produces serious science kits that teach concepts and skills through handson modeling of real-world devices and processes. The manuals make for a rich learning experience. Students can learn how to build fuel cells, discover the science behind climate change, and learn the chem- Kids coughing? A new study from Penn State College of Medicine shows a simple, over-the-counter remedy that has been used for generations really works. Vapor rub (menthol, camphor and eucalyptus oils) applied to children’s chests at bedtime reduced kids’ cough frequency, cough severity and congestion and helped them sleep better. Engineering. If your children can’t get enough of amusement park rides, the Science of Disney Imagineering DVD series will open their eyes to the power of the attractions. The educational series uses physical and visual examples that demonstrate how science (magnetism, friction, trajectory) puts the magic in the rides. (Ages 8+, Disney Educational Productions $29.99) Design. Each Design Dossier in this innovative book series intro-...
Kunci jawaban Babak FINAL Jenis soal : ESSAY 1. Kinerja bensin diukur berdasarkan nilai oktan (octane number) yaitu keberadaan senyawa 2,2,4 - trimetil pentane (isooktana) dengan nilai oktan 100, sedangkan nheptana nilai oktannya adalah nol. a. Gambarkan struktur 2,2,4 – trimetil pentane dan n – heptana (20 Point) Penyelesaian : b. Gambarkan semua isomer struktur n-heptana dan namai secara IUPAC (30 Point) Penyelesaian : c. Gambarkan struktur dan nama IUPAC alkena paling sederhana yang mempunyai isomer cis dan trans. (30 Point) Penyelesaian : d. Jelaskan pengertian bensin dengan angka oktan 75 % (20 Point) Penyelesaian : Angka oktan pada bensin ditentukan dengan adanya senyawa trimetil pentane dan nheptana dimana apabila pada bensin memiliki angka oktan 100 % maka pada besin tersebut terkandung senyawa trimetil pentane banding senyawa n-heptana yaitu 100 : 0, sehingga apabila bensin dengan angka oktan 75 % maka dalam bensin tersebut terkandung 75 % senyawa trimetil pentane dan 25 % senyawa n-heptana. 2. Reaksi : 2NOBr (g) 2NO (g) + Br2 (g) H = +16,1 kJ Diketahui : Tekanan awal NOBr = 0,65 atm. : NOBr telah terurai sebanyak 28% (Saat Kstb) (a) Tuliskan bentuk tetapan kesetimbangan, Kp. (10 poin) Penyelesaian : Kp [p NO ] 2 [p Br2 ] [p NOBr ] 2 (b) Tentukan tekanan parsial gas NOBr, NO, dan Br2 setelah tercapai keadaan kesetimbangan. (30 poin) Penyelesaian : 100 28 p NOBr 0,65 atm 0,468 atm 100 28 p NO 0,65 atm 0,182 atm 100 p Br2 28 2 100 0,65 atm 0,091 atm (c) Tentukan tekanan total sesudai tercapai kesetimbangan (20 poin) Penyelesaian : (100 28 ) (28 14 ) 114 p tot [ ] 0,65 atm 0,65 atm 0,741 atm 100 100 (d) Hitung nilai tetapan kesetimbangan, Kp pada temperatur tersebut. (20 poin) Penyelesaian :
Complex systems and complex missions take years of planning and force launches to become incredibly expensive. The longer the planning and the more expensive the mission, the more catastrophic if it fails. The solution has always been to plan better, add redundancy, test thoroughly and use high quality components. Based on our experience in building ground based mobile robots (legged and wheeled) we argue here for cheap, fast missions using large numbers of mass produced simple autonomous robots that are small b y today's standards (1 to 2 Kg). We argue that the time between mission conception and implementation can be radically reduced, that launch mass can be slashed, that totally autonomous robots can be more reliable than ground controlled robots, and that large numbers of robots can change the tradeoff between reliability of individual components and overall mission success. Lastly, we suggest that within a few years it will be possible at modest cost to invade a planet with millions of tiny robots. 1.
Micr rosoft® E el 2010 Exce 2 0 Custom mizable Trainin Materials ng Qu uick Reference Card e Tel. (888) 9 903-2432 | www.c customguide.com m The Excel 20 Scree e 010 en Keybo oard Shor rtcuts Quic Access Toolba ck ar e Title bar Formula Bar C Close button File ta ab on Ribbo Name e box Col lumns Active cell Ro ows View buttons b Move Betw ween Cells Zoom s slider The Fundam e mentals The File tab menu an Backstage view contain commands e nd w for w working with a pro ogram’s files, such as Open, Save, h Clos New, and Print. se, • To Create a Ne Workbook: Click ew the File tab and select New, and click d Create, or press + . • To Open a Workbook: Click the File O tab and select Open, or press + . • To Save a Wor rkbook: Click the Save button on the Quick Access s ss Toolbar, or pres + . To Preview and Print a Workbo ook: ab Click the File ta and select Print, or press + . • To Undo: Click the k Undo button on the Quick Ac ccess Toolbar, or press + . • To Redo or Re epeat: Click the Redo button on the Quick Access n s Toolbar, or pres + . The ss T last command is repeated if Undo s o was not previou used. usly • To Close a Wo orkbook: Click the e Close button, or press + . o < • To Get Help: Press to open the P n Help window. Type your question and T n press . • Cell addresses: Cells a referenced by are addres sses made from th column letter heir and ro number, such a cell A1, A2, B1, ow as B2, etc. You can find the address of a celll e by looking at the Name Box. • To Se a Cell: Click a cell or use the elect...
This document provides information regarding the formatting options available in Microsoft Excel 2010. Overview of Excel Microsoft Excel 2010 is a powerful tool you can use to create and format spreadsheets, create graphs to visually display data, write formulas to calculate mathematical equations, and analyze and share information to make more informed decisions. The Font Group on the Home Tab The Font group on the Home tab contains basic text and cell formatting tools. Change font size; increase or decrease font size. Change the color of the text. Change font type. Add a background color to the cell. Bold, underline, or italicize text. Add a cell border. The cell border tool offers many options for adding borders. The cell border, background color, and text color buttons ‘remember’ the most recent selection made. For example, if the last cell border you selected was a Thick Box Border, you can just click the cell border button to assign another cell with that border (without having to reselect it from the dropdown list). Information Technology Services, UIS 1 [Not for Circulation] The Alignment Group on the Home Tab The Alignment group on the Home tab contains an assortment of useful tools for formatting cells in Excel. Align text to the top, middle, or bottom of a cell. Rotate text within a cell. Wrap text within a cell. Merge the selected cells into one large cell and center the text (for example, for a title ). Align text to the left, center, or right within a cell. Increase or decrease the margin between the border and the text within a cell. Format Painter The Format Painter tool allows you to copy the format of a cell (not the contents, just the formatting) and apply it to other cells. 1. To use the Format Painter, select the cell(s) with the desired formatting. 2. Click the Format Painter button in the Clipboard group of the Home tab.
Microsoft Excel 2010: How-To Add Drop-Down Lists and Data Validation to Excel 2010 Spreadsheets In Excel 2010, a handy feature is the Data Validation feature which allows you to create a Drop-Down list for populating fields. This works great for when several folks that work on a file together, by using the drop down lists you can keep the data normalized by saving a lot of time during and at the end of the process. You can add Data Validation drop down lists to entire columns or you can add the drop down to individual cells. This tutorial explains how to add to entire columns. Step 1 – Select which cells to add validation to Click a column to highlight the entire column. Step 2 – Data ribbon Now that you have the desired cells selected, Click the Data tab, then Click the Data Validation tool. 1 Step 3 – Validation criteria From the Settings Tab, Click the Allow drop down list and Click List. Step 4 – Dropdown list If you already have a few rows with your List data you can just select those fields. However to keep things simple, I suggest manually enter the data for dropdown menu by Typing them into the box separating them with a comma. Click OK to save. 2 Step 5 – Optional: Input Message + Error Alert There are two additional Data Validation tabs that you can use if you like. The first one is Input Message, this tab will allow you to assign a small pop-up message that appears whenever someone selects a cell with this data validation assigned to it. The second is the Error Alert, this will let you set up a message when someone attempts to input information in the cell that does not match what you put in the Source.
Excel 2010 Modifying Columns, Rows, and Cells Page 1 Introduction When you open a new, blank workbook, the cells are set to a default size.You do have the ability to modify cells, and to insert and delete columns, rows, and cells, as needed. In this lesson, you will learn how to change row height and column width; insert and delete rows and columns; wrap text in a cell; and merge cells. Page 2 Working with Columns, Rows, and Cells By default, every row and column of a new workbook is always set to the same height and width. Excel allows you to modify column width and row height in a variety of different ways. Video: Modifying Cells, Rows, and Columns in Excel 2010 Watch the video (3:22). Need help? To Modify Column Width: 1. Position your mouse over the column line in the column heading so that the white cross double arrow . ©1998-2013 Goodwill Community Foundation, Inc. All rights reserved. becomes a Positioning mouse over the column line 2. Click and drag the column to the right to increase the column width or to the left to decrease the column width. Increasing the column width 3. Release the mouse. The column width will be changed in your spreadsheet. Increased column width To Set Column Width with a Specific Measurement: 1. Select the columns you want to modify. 2. Click the Format command on the Home tab. The format drop-down menu appears. 3. Select Column Width. ©1998-2013 Goodwill Community Foundation, Inc. All rights reserved. Increasing the column width 4. The Column Width dialog box appears. Enter a specific measurement. Increasing column width to 258 pixels 5. Click OK. The width of each selected column will be changed in your worksheet. Select AutoFit Column Width from the format drop-down menu and Excel will automatically adjust each selected column so that all the text will fit. Page 3 To Modify the Row Height: ©1998-2013 Goodwill Community Foundation, Inc. All rights reserved.
Let's consider the following example: One has measured the force necessary to extend a spring from its rest (equilibrium position) for various extensions. The goal is to find the spring constant. The theory (Hook's Law) predicts the linear dependence between the force and the change of the length of the spring: F = -kx To find the spring constant k, one needs to plot the negative force -F as a function of x and find the straight-line fit. The slope of that line is equal to the spring constant k. Finding the best straight-line fit could be quite time consuming if done with a calculator. Using Microsoft Excel program significantly simplifies the whole procedure. Follow the steps shown below to make a graph and then draw a straight line that fits your data. A. Start Microsoft Excel 2010 (or Excel 2007). B. Enter your data into Excel spreadsheet. C. Highlight all cells containing data. In our example, the first column (A) contains values of x, whereas the second column (B) contains values of force -F: D. From the "Insert" tab select "Charts - Scatter". Use the first type of scatter charts – “Scatter with only Markers”. You should see a simple plot prepared by Excel. E. Next step is to add axis labels and legend to the graph. Select “Layout” tab from “Chart Tools”. Then add a header using the “Chart Title” button and add axis labels using “Axis Titles” button (both for horizontal and for vertical axes). Optionally, you may edit or simply remove the legend. Grab and drag a corner of the graph (chart) to enlarge its size. F. The last step is to add the linear fit (a straight line fit) to your graph (chart). Click once anywhere inside the graph area. Select the “Layout” tab from “Chart Tools”. Click on the “Trendline” icon and select the “Linear Trendline” option. You should see a graph similar to this: ...
If you haven’t already viewed Excel 2010: Creating an Accessible Excel Spreadsheet, Part 1, you’ll want to check it out to ensure you’re doing everything you can to make your Excel tables and spreadsheets accessible. In that module we described a lot of good, general practices in Excel that also improve accessibility. In this module, we go further with more tips, most of which are specifically for assistive technology screen readers like JAWS. Note: for making forms in Excel accessible, see Excel 2010: Creating Accessible Forms Parts 1 and 2 in addition to ensuring your form has covered the accessibility considerations in these two modules for spreadsheets. Further Steps to Assist with Screen Readers in Excel Screen Reader Help Text in Cell A1 Provide help text for navigation using screen readers, in cell A1. • For example, “Press TAB to move to input areas. Press UP or DOWN ARROW in column A to read through the document.” • You can make this text fairly small, or even change the color to match the background color. This way it will not show up visually, but will still be read by the screen reader. Page 1 of 6 Last Modified: 8/16/2012 9:24:00 AM 15-Excel02.docx Microsoft Office 2010 Project Accessible Excel Spreadsheets 2 Table Titles Table titles should be placed in the first column so screen readers can find them easily, as discussed in the previous module. If that looks funny you can merge cells and center them, but keep the original text in the first column. Images Ensure that any images have alternate text descriptions. Follow the steps below, or use the method for charts that we’ll discuss next. • Insert the image, then right-click and choose Size and Properties. • In the Size and Properties dialog box, choose the Alt Text tab. Type in a brief description with enough detail to explain the pictures. You don’t need to say “image of” or “picture of” because the screen reader alerts the reader that it is an image. Page 2 of 6 Last Modified: 8/16/2012 9:24:00 AM 15-Excel02.docx Microsoft Office 2010 Project • Accessible Excel Spreadsheets 2 Click Close. Charts Ensure that any charts have alternative text descriptions. This is different than images, since charts created in Excel don’t have an area for Alt Text. • Resize the row where you want to insert the chart. You may merge cells if you want. • Insert the chart. • In the cell where the chart is, type the description. This description may need to be fairly long to adequately explain the chart.
Protecting Cells in Excel 2010 A few notes before we begin: All cells in an Excel worksheet are locked by default, this way when you turn on Protect Sheet everything is safe. So you must unlock cells you would like to be able to edit before you turn on Protect Sheet 1. Open the spreadsheet you wish to protect 2. Highlight a cell, row, or column (or group of them) you would like to be able to edit after protection is turned on 3. Select the Format button in the Cells area 4. Select Lock Cell (this will toggle it off so the cell is unlocked) Page 1 of 3 Protecting Cells in Excel 2010 5. Repeat steps 2-4 until all cells that need to remain editable have been unlocked 6. Select the Format button in the Cells area 7. Select Protect Sheet… 8. Create a password to use to lock the sheet and enter it in the password field (you must remember this password to unlock the sheet at a later date) Page 2 of 3 Protecting Cells in Excel 2010 9. Click the OK button 10. Confirm the password by entering it again and click the OK button 11. Now the only cells that are editable are the ones you unlocked earlier Page 3 of 3