Notes, abstracts, papers, exams and problems of Other courses

Kinetic Energy and Potential Energy

Kinetic Energy (KE) Calculation:

A body with a mass of 50kg has a velocity of 20 m/s.

KE = (1/2) * M * V²

KE = (1/2) * 50kg * (20 m/s)²

KE = (1/2) * 50 * 400

KE = 10000 Joules

Total Energy Calculation:

A body with a mass of 5kg is at a height of 10m and moving at a speed of 20 m/s. Calculate its total energy.

Mass (M) = 5kg

Height (H) = 10m

Velocity (V) = 20 m/s

Potential Energy (PE) = M * g * H = 5kg * 9.8 m/s² * 10m = 490 Joules

Kinetic Energy (KE) = (1/2) * M * V² = (1/2) * 5kg * (20 m/s)² = 1000 Joules

Total Energy = KE + PE = 1000 Joules + 490 Joules = 1490 Joules

Heat Transfer and Temperature Conversion

Kelvin to Celsius Conversion:

How to convert 300 Kelvin to Celsius, as applicable to converting 100 Celsius to Kelvin.... Continue reading "Kinetic Energy, Heat Transfer, and Algebraic Equations" »

Types of Coordinated Propositions

Coordination

Copulative: y, e, ni

Disjunctive: o, u

Distributive: one...another, bien...bien

Adversative

Restrictive/Partial: but, however, most, but nonetheless, although

Exclusive/Full: but, before bien

Explanatory

that is, what's more, for example

Pronouns and Their Values

Personal: Buy a book for Martha

Reflexive: Shaves

Reciprocal: Pedro and I look at frames

Interest: Laura, take one

Language Types and Characteristics

Administrative Language

Used in public and citizen-facing documents. Examples: analysis, curriculum, resource management, circulars.

Legal Language

Governs citizen relations. Examples: laws, proclamations, decrees, lawsuits, judgments, edicts.

Scientific Language

Communicates research results. Features explanatory... Continue reading "Coordinated, Disjunctive, and Adversative Propositions in Language" »

Figures of Speech

Sound Devices:

• Alliteration: Repetition of consonant sounds at the beginning of words or stressed syllables.
• Assonance: Repetition of vowel sounds within words.
• Consonance: Repetition of consonant sounds within or at the end of words.
• Onomatopoeia: Words that imitate sounds.

Figurative Language:

• Anaphora: Repetition of a word or phrase at the beginning of successive clauses or verses.
• Anadiplosis: Repetition of the last word of one clause or verse at the beginning of the next.
• Antithesis: Juxtaposition of contrasting ideas.
• Apostrophe: Addressing an absent person, abstract idea, or inanimate object.
• Asyndeton: Omission of conjunctions between words or phrases.
• Chiasmus: Repetition of words in reverse order.
• Ellipsis: Omission of words

Kinematics Formulas

Position Vector

r = xi + yj

• x = r cos
• y = r sin
• r = √(x² + y²)
• tan θ = y / x

Displacement

Δr = r - r_initial

Speed, Average Speed, Instantaneous Speed

• Average Speed: v_av = Δr / Δt
• Instantaneous Speed: v = dr / dt

Average Acceleration, Instantaneous Acceleration

• Average Acceleration: a_av = Δv / Δt
• Instantaneous Acceleration: a = dv / dt

Uniform Rectilinear Motion (MRU)

• v = Δx / Δt
• v_mean = (v₀ + v) / 2
• v = v₀ + at
• x = x₀ + vt
• x = x₀ + v₀t + (1/2)at²
• v² - v₀² = 2aΔx
• v² = v₀² ± 2as

Free Fall

• Velocity: v = gt
• Position (height fallen): y = (1/2)gt²
• Velocity (upward): v = -gt
• Position (height): y = y₀ - (1/2)gt²

Upward Vertical Launch

• Velocity: v = v₀ - gt
• Position (height): y = y₀ + v₀t - (1/2)gt²
• Time to reach maximum height: t = v₀ / g
• Maximum

Romanticism

Romantic poets had as their themes: rejection of the environment, emotional excitement, liberated longing, and communion with nature.

• Poetry: Intimate lyric poetry that expresses the frustrations of the poet.
• Narrative: Collected legends and historical themes.

José de Espronceda

He is a romantic liberal prototype, exalted. His poetry is a passionate hymn to freedom, with a brilliant, musical, and effective style.

Works: Sancho Saldaña, Blanca de Borbón, El Estudiante de Salamanca, El Diablo Mundo, Hymn to the Sun.

Style: Pompous and emphatic, brilliant musicality.

Late Romanticism

Intimate romantic lyricism reached its climax late, with Gustavo Adolfo Bécquer and Rosalía de Castro. Both favor a simple, lyrical, and introspective style.... Continue reading "Spanish Literature: Romanticism to the Generation of '98" »

DNA vs. RNA: Key Differences

DNA (Deoxyribonucleic Acid)

• Composition: The pentose sugar is D-deoxyribose. Contains the nitrogenous bases Adenine (A), Guanine (G), Thymine (T), and Cytosine (C) in similar proportions.
• Structure: DNA is a double-stranded molecule consisting of two polynucleotide chains.
• Configuration: Forms a double helix structure with the two chains connected by base pairing (A-T and C-G).
• Location: In eukaryotic cells, DNA is located in the nucleus, forming chromosomes. In prokaryotic cells, it forms a single, circular chromosome located in the cytoplasm.
• Function: DNA encodes the information that determines the order of amino acids required to synthesize all cellular proteins. A gene, a defined segment of DNA, contains the information

The Meseta Central

The Meseta Central is a high plain located at an altitude of about 600-800 meters. It was formed primarily by the erosion of the Hesperian Massif, which emerged during the Hercynian orogeny. In the Tertiary Era, it was deformed, and the plateau was largely reshaped by the Alpine orogeny. Three main units can be distinguished:

A) The Old Paleozoic Basement

Today, it only occupies the western part of the peninsula. The erosion of Tertiary materials that covered the basement has exposed primary peneplains. These are elevations due to erosion or gently undulating surfaces. The peneplains feature inselbergs (very hard rocks). In areas where the peneplain contacts the sedimentary basins of the plateau, rivers create deep gorges.

B)

Sulfate Minerals

Molecular Level: Chemical Composition of Living Beings

1.1. Bioelements

Bioelements are all chemical elements that, in greater or lesser proportions, form living matter. There are six that qualify as the primary bioelements: C (Carbon), H (Hydrogen), O (Oxygen), N (Nitrogen), P (Phosphorus), and S (Sulfur). These make up most of living matter.

Others are involved in smaller quantities but are still essential for cellular metabolism. These are called secondary bioelements, which include Mg (Magnesium), Ca (Calcium), K (Potassium), Na (Sodium), and Cl (Chlorine).

Even smaller quantities of other elements are essential for living beings. These are called trace elements, and their lack causes serious illness and even death. Examples include Fe (Iron)... Continue reading "Chemical Composition of Living Beings: Bioelements and Biomolecules" »

The Second Industrial Revolution

Business Concentrations: Cartels, Trusts, and Holding Companies

A cartel is an agreement among manufacturers of certain products to reduce or eliminate competition. This agreement often involves fixing prices or allocating clientele. A trust is a fusion resulting from various administrations or activities devoted to the same or different phases of a production process. A holding company is a financial company that invests in and controls various administrations. These giant concentrations developed in the U.S. and Germany. Some industrial powers, like the United States, enacted anti-trust laws that forbade actions hindering competition or creating monopolies.

Economic Protectionism

Economic protectionism consisted... Continue reading "Second Industrial Revolution: Technological Advancements & Global Impact" »