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Kepler's third law states that the square of the period of any planet is proportional to the cube of its orbital radius.To derive it, two equations are required: F=GMm/r^2 and F = mv^2/r. These are Newton...

First, if k=0 then the equation has no real roots since in this case we would have 5=0 (this is a proof by contradiction).
A quadratic equation of the form ax^2+bx+c=0 has no real roots if the discri...

DNA is contained within the nucleus of the cell. It contains genes which are a sequence of DNA codes. Each gene codes for a protein. All the DNA is coiled into structures called chromosomes. There are 46 ...

First of all an action potential reaches the end of a motor neuron and the neurotransmitter acetylcholine is then released into the synapse. An action potential is initiated in the muscle cellSarcoplasmic...

The process of synaptic transmission is when electrical nerve impulses, known as action potentials, travel from the dendrites of the cell (the receptor site) to the axon terminal. When these action potent...