Tài liệu Introduction To Statics And Dynamics P2 doc

... of two vectors 23 2.2 The dot product of two vectors The dot product is used to project a vector in a given direction, to reduce a vector to components, to reduce vector equations to scalar equations, ... main mathematical tool here is the vector cross product, a second way of multiplying vectors together. The cross product is used to define (and calculate) moment and to calcu...

Ngày tải lên: 25/01/2014, 15:20

... machines, structures, plants, animals and planets hold together and move about 1 Introduction to STATICS and DYNAMICS F 1 F 2 N 1 N 2  F s  M s ˆ ı ˆ  ˆ k Andy Ruina and Rudra Pratap Pre-print for ... tools: • A vector calculator that always keeps vectors and scalars distinct, and • A reliable and clear free body diagram drawing tool. Because manyof the terms in mecha...

Ngày tải lên: 25/01/2014, 15:20

... bodies; and forks, to move potatoes. A connecting rod is designed to move a crankshaft; a crankshaft, to move a transmission; and a transmission, to move a wheel. And wheels are designed to move ... mechanics problems are two well worn tools: • A vector calculator that always keeps vectors and scalars distinct, and • A reliable and clear free body diagram drawing tool. B...

Ngày tải lên: 08/04/2014, 11:26

... ABCand D are constants and λ = √ k/m. We need initial conditions to evaluate the constants ABCand D. Since the mass starts at t = 0 from the rest position when θ = θ o , x(0) =− cos θ o and ... calculator using trial and error. Here is a M ATLAB script which finds t f and plots the path of the collar from t = 0stot = t f : tf = fzero(’slidebar’,2); % run built-in function fzero % t...

Ngày tải lên: 08/04/2014, 11:26

... turning? You may assume that the bearing shaft touches the hole in the pulley at only one point. ∗ . Introduction to STATICS and DYNAMICS Problem Book Rudra Pratap and Andy Ruina Spring 2001 Problems for ... sinωt, where A and B are constants to be determined from initial conditions. Assume A and B are the only unknowns and write the equations in matrix form to solve for...

Ngày tải lên: 08/04/2014, 11:27

... reference electrodes that are easier to construct and handle, less sensitive to impurities, and whose potential is very stable and well- known with respect to the SHE (Ref 1). The simpler reference ... Fe and Fe 2+ at a given concentration are in equilibrium and can coexist with no net tendency for one to transform into the other. At potentials above the line, iron metal...

Ngày tải lên: 13/12/2013, 04:15

... PEAR::XML_Serializer XML has never been so easy Introduction to PHP-GTKIntroduction to PHP-GTK Getting started with desktop applications in PHP An Introduction to SQLiteAn Introduction to SQLite SQL for the masses Object ... /* Create a button */ 30 $button = &new GtkButton(‘Ok’); 31 32 /* Connect the click_button() function to the clicked signal */ 33 $button->conn...

Ngày tải lên: 21/12/2013, 12:15

... OleDbCommand myOleDbCommand = myOleDbConnection.CreateCommand(); // set the CommandText property of the OleDbCommand object to // a SQL SELECT statement that retrieves a row from the Customers ... using an OleDbConnection object and retrieve a row from the Customers table. Notice that you use an OleDbCommand and OleDbDataReader object to run a SQL statement and read the ret...

Ngày tải lên: 24/12/2013, 01:17