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Degree: Physics with professional experience (Masters) - Exeter University
Florence (Parent) May 17 2015
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They are a group of specialised cells that respond to different changes in the environment called stimuli. Different types of receptors have different stimuli they react to such as light, sound, chemicals and pressure. They are often found in sensory organs such as eyes, ears, nose, tongue and skin.see more
Nuclear fusion is the opposite to fission. In nuclear fusion, two nuclei of lighter elements combine to create a nucleus of a larger element, whereas in nuclear fission, a nucleus splits into two smaller nuclei. Both release energy, however fusion releases a lot more. Nuclear power uses fission to produce energy. The sun is powered by nuclear fusion.see more
You would use the quadratic formula when trying to find the value of a variable such as x in a quadratic equation but it can not be successfully factorised with whole numbers. Treating the the equation in the form ax2+bx+c=0 then putting the values into the equation, two values of x will be found from switching the sign in the equation.