Radians and Conversion
Circular measure uses radians. The radian measure of a central angle is theta = arc/radius. You get 1 radian when the arc length equals the radius. A full turn…
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Circular measure uses radians. The radian measure of a central angle is theta = arc/radius. You get 1 radian when the arc length equals the radius. A full turn…
Blockchain is a digital ledger (database) of transactions that is shared and maintained by network users. The ledger is a list of continuously growing records,…
Binding energy per nucleon is the total binding energy of a nucleus divided by its number of nucleons.
Functional Programming is a programming paradigm where the code is divided into functions based on functionality, and developers focus more on what is to…
TIR occurs for denser→rarer propagation when incidence exceeds the critical angle.
One of the main aims of physics is to develop a clear and testable understanding of the physical universe. Physicists ask questions such as: • How do objects…
Trichotomy: for reals a and b, exactly one of a<b, a=b, a>b holds. Adding the same number keeps the inequality direction. Multiplying (or dividing) by a…
3 shirts and 2 trousers: 6 outfits. A 4-digit PIN with digits 0-9 and repetition allowed: 10^4. Without repetition: 1098*7 for a 4-digit code from 10 digits…
Send pulse, receive echo, calculate d=vt/2.
Bone is a living tissue that undergoes repair following fracture. The repair process of a simple fracture takes place in four major steps. Haematoma or…
Boyle’s law states that for a fixed amount of gas at constant temperature, volume is inversely proportional to pressure, so the product PV remains constant.
Chemical Nature of Hormones: All the hormones are organic substances of varying structural complexity. Chemically, they may belong to any of the following…
Three Electron Pairs (AX₃ or AX₂E): A molecule in which the central atom is surrounded by three electron pairs — either three bonding pairs or two bonding…
z * (1z) = 1. If z = x+iy, 1z = x-iyx2+y2. Useful in linear systems with complex coefficients.
Plasma Membrane: The plasma membrane is the outer living boundary of the cell. It is also called the cell membrane. It controls the passage of materials…
Ionising radiation can damage atoms and molecules inside living tissue.
Entrepreneurial Skills: Entrepreneurial skills are the abilities and qualities that help a person start, manage, and grow a successful business. These…
Cardiovascular Disorders (CVD): Cardiovascular disorders or diseases are the diseases of the heart and blood vessels. They are the leading cause of…
Geometry is built from sentences you can judge. A statement is a sentence that is true or false, such as 'a square has four equal sides'. An open sentence is…
Re(z) = x. Im(z) = y. Pure imaginary: x = 0, y != 0. Real: y = 0. 0 = 0 + 0i is still in C. Powers of i cycle every 4 (i, -1, -i, 1).
If angle A and angle B are known, the third angle C = 180 deg · A · B. So AAS is secretly as strong as ASA: you can recover the missing angle and then place…
Dihybrid cross: A genetic cross between individuals that differ in two traits, such as seed shape and seed color.
Entrepreneurship: The process of creating an enterprise is called "entrepreneurship". It involves the tendency of mind to calculate risks with confidence…
Life Cycle of Bacteriophage: The life cycle of a bacteriophage is the sequence of events from infection of a bacterial cell to the release of new phage…