1.1.1 Device/System Usability
Usability is the degree to which a device or system can be used by specific users to achieve specified goals with effectiveness, efficiency, and…
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Usability is the degree to which a device or system can be used by specific users to achieve specified goals with effectiveness, efficiency, and…
-1 <= sin(anything) <= 1. Multiply by 7: -7 to 7. a + b sin theta: [a-|b|, a+|b|]. Shift then stretch.
Malicious use of the internet refers to the intentional use of the internet and digital technologies to cause harm, commit crimes, or violate the rights…
Capacitors are in series when they are connected end-to-end so that the same charge magnitude appears on each capacitor in the ideal series chain.
Fossil Fuels are hydrocarbons—molecules made up of hydrogen and carbon atoms—formed from the remains of dead plants and animals over millions of years.…
Fossils: sequence in rocks, transitional named (Archaeopteryx if the book). Homologous limbs: same bones, different jobs (descent). Analogous: same job,…
Problems Faced by Osmoregulators: Since freshwater animals live in hypotonic environment, therefore, water constantly enters the body and they also face…
A habitat is where an organism lives; its niche is its role, resource use and tolerated conditions. Species can share habitat without occupying identical…
A tangent can be constructed without first marking the centre by using the alternate segment theorem. At endpoint A of chord AB, copy at A the angle subtended…
Phenol: An organic compound with a hydroxyl group (-OH) directly attached to a benzene ring. Its formula is C_6H_5OH. · Diazonium Salt:…
Diffraction is the spreading or bending of waves as they pass through an opening or around an obstacle, especially when the opening or obstacle size is…
Geometry of a Complex: The three-dimensional arrangement of ligands around the central metal ion. · Coordination Number: The number of coordinate…
Path of a Message Transmitted to the CNS: The path of a message transmitted to the central nervous system is the route taken by sensory information from…
The Doppler effect is an apparent frequency change caused by relative motion. For a moving listener and stationary source, wavelength stays fixed while the…
Input-Processing-Output (I-P-O) Model: The computer systems work on the input-process-output model. The analyzing of a problem allows us to break the…
Gas pressure arises from the repeated collisions of moving gas molecules with the walls of their container.
A diameter has distance 0 from O and is longest. As the foot M moves toward the rim, the chord shrinks. Pythagoras: half-chord = sqrt(r^2 - d^2).
Young’s modulus is the ratio of longitudinal stress to longitudinal strain within the elastic range. It measures resistance to a change in length.
Start with a producer (or detritus in a detrital chain). Length is short because energy dies as heat. Do not start with the sun as an organism. Always start…
Heterotrophic Nutrition in Bacteria: Heterotrophic bacteria are organisms that depend on external organic sources to obtain carbon and energy. They lack…
Sn = a1+...+an. Sigma notation named: sumk=1n ak. Do not mix an (one term) with S_n (a total).
Free oscillations occur after an initial disturbance without a continuing external periodic force, while forced oscillations are maintained by an external…
The half-life of a radioactive isotope is the time taken for the number of undecayed radioactive nuclei, or the activity of a sample, to fall to half its…
Carrying capacity is the population an environment can support over time. It changes with resources, technology, disturbance and consumption patterns.