General Equation of a Circle
x^2+y^2+Dx+Ey+F=0 represents a real circle when the computed radius squared is positive.
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x^2+y^2+Dx+Ey+F=0 represents a real circle when the computed radius squared is positive.
C2H5OH + 3O2 -> 2CO2 + 3H2O. Incomplete: CO. Bioethanol named as a fuel slogan. No engine-tuning. Elimination mechanism E1/E2 named lightly — product alkene…
Flowering plant: pollen + ovule. Human: sperm + egg. Variation from crossing over and random assortment (next chapters). Cost: two sexes, courtship, seasons.…
Watson and Crick Model of DNA: According to this model, DNA is made up of two polynucleotide chains that are attached together by base pairs. The two…
An electric field is a region in which a charged object experiences an electric force.
Ecology studies interactions between organisms and environment. Organism, population, community, ecosystem, biome and biosphere are nested levels with emerging…
Protists: Protists are a varied group of organisms that have eukaryotic cells, similar to those found in fungi, animals, and plants. In simple words:…
A quadratic trinomial x^2 + p x + q factors as (x + m)(x + n) when m + n = p and m n = q: you need two numbers with product q and sum p. For ax^2 + bx + c with…
Radioactivity is the spontaneous and random emission of radiation from an unstable atomic nucleus.
An open pipe supports stationary waves with displacement antinodes at both ends. Its length contains a whole number of half-wavelengths, so λₙ=2L/n and…
An LDR is a light-dependent resistor whose resistance decreases as light intensity increases and rises in darkness.
1. Acid rain mitigation (a) Emission control: · Measures to reduce emissions of sulphur dioxide and nitrogen oxides from industrial units, power…
Definition: Viroids are pathogens that consist of a short, circular, single-stranded RNA without a protein coat or envelope. Key Points: · Viroid RNA…
Evaporation lets the solvent leave as vapour and leaves the solute behind. It is useful when the solid is the prize, as in salt from seawater. Drinking water…
Cardiac Cycle: The cardiac cycle is a sequence of one complete heartbeat. It includes the alternating relaxation and contraction of the atria and…
Design view defines field names, data types, sizes, defaults, validation, and primary keys.
E-commerce, driven by computing, has transformed shopping and business. It allows people to buy and sell products online from anywhere, anytime. Businesses can…
Alkynes: Alkynes contain a carbon-carbon triple bond. This is shown in their name by the ending "-yne". In simple words: Alkynes are…
Reasoning (according to Garrett): "Reasoning is a stepwise thinking with a purpose and goal in mind." It is a specialized form of thinking that enables a…
Urine Formation: Urine formation is the process by which the kidneys produce urine from blood. It involves three main processes: glomerular filtration,…
Advantages of Friction: The beneficial effects of friction that are necessary for many everyday activities and functions. Disadvantages of Friction:…
Write i j k on top. Compute the three cofactors. Watch the minus in front of j. Practice one fully written expansion.
A common solvent is water:ethanol 6:4. For 25 cm3 of mix that means 15 cm3 water + 10 cm3 ethanol. Measure both, pour them into the cylinder, and swirl gently.
Significance Testing is a statistical method used to determine if a result is due to chance or if it is statistically significant (likely due to some real…