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Publicada porPascual Alba
Modificado hace 3 años
by Jaime R. Rico
Definition A stress is an internal force which acts on a member of the structure. There are 5 kinds of stresses: Tension Compression Bending Torsion Shear
TENSION Its a stress that tends to lengthen or stretch the member
COMPRESSION Its a stress that tends to shorten or squeeze the member
TENSION vs. COMPRESSION STRETCHING SQUEEZING
BENDING Its a stress that tends to bend the member
TORSION Its a stress that tends to twist the member
SHEAR Its a stress that tends to cut the member or to slide one part over the other
Lets revise these five stresses!
Activity #1 Indica los esfuerzos a los que está sometidos la barra fija, los soportes (postes) y los tirantes (cables) BENDING COMPRESSION TENSION & TORSION (rotate) SHEAR
Ejercicio 2 Indica el tipo de esfuerzo al que está sometida el elemento que soporta la carga
Tener Lets look at the verb tener (to have). It features two verb changes that we will see very soon.
¿Cuál prefieres? ¿Este libro, ese libro o aquel libro? Click next to begin.
P In this slide show, we are going to look at a verb form that has all but disappeared from English – the subjunctive! In this slide show, we.
The Subjunctive In this slide show, we are going to look at a verb form that has all but disappeared from English – the subjunctive!
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Se Impersonal. The ‘impersonal se’ structure is a way of talking about things that get done when the subject (person doing it) is unknown or unimportant.
Los artículos Understanding definite and indefinite articles.
To be, or not to be? Lets start out with one of the most important verbs in Spanish: ser, which means to be.
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3rd Grade 2 nd Six Weeks Science Unit 3, Lesson 2 CScope Vocabulary Words
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Feminine vs. Masculine Nouns. In Spanish, all nouns are either masculine or feminine This is mostly arbitrary, which means that just because the noun.
Copyright © 2008 Vista Higher Learning. All rights reserved Both English and Spanish use superlatives to express the highest or lowest degree of.
El pretérito: verbos en -AR What is el pretérito? Stuff that happened in the past!! Its DONE… OVER WITH!!
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¿Qué hora es? What time is it? (What hour is it?).
Año Nuevo By: Ally Hendrix. Basic Features of Año Nuevo Most Mexicans celebrate by having a late night dinner with their families. In Mexico City they.
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Capítulo 2 12 of 54 Hay una bicicleta detrás del carro. Los Benavides tienen un carro nuevo. No es viejo. Hay un jardín delante de su casa. La familia.
Gusta, again! Earlier in the course, we saw how to express likes and dislikes about activities, i.e., gusta + a verb. In this slide show, we are going.
Copyright © 2008 Vista Higher Learning. All rights reserved Indefinite words refer to people and things that are not specific, for example, someone.
Copyright © 2008 Vista Higher Learning. All rights reserved In Lecciones 6–9, you learned the preterite tense. You will now learn the imperfect,
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Uses of Estar. Geographic or Physical Locations Estar is used to express geographic or physical locations. ¿Dónde estás? Where are you? Estoy en el laboratorio.
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This, that, these, those, etc. (the pointing-out adjectives and pronouns.) Demonstrative Adjectives and Pronouns (Los adjetivos y pronombres demostrativos)
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El Presente (the present) 1. The present is used to express an event that occurs in the present.
-go Verbs Small but very important group of verbs that we call the “-go” verbs. These verbs are: Hacer: to make/do Poner: to put Tener : to have Traer:
¿Qué hora es? y menos y media y cuarto menos cuarto :30 :15:45 en punto :00 The y & menos only refer to the MINUTES on the clock! Minutes- :01- :30 “y”
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The organization of the human body. All living organisms are made of one or more cells.
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Saber vs. Conocer To Know.
Pensar, Querer, and Preferir PREFERIR n Here we will learn the verb PREFERIR, which means “to prefer.” n But before we do, let’s look at 2 other verbs.
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