Final answer:
Bernoulli's principle states that as the speed of a fluid increases, its pressure decreases, and vice versa, when the height of the fluid remains constant. The principle is based on the conservation of energy in a fluid system.
Step-by-step explanation:
Bernoulli's principle states that as the speed of a fluid increases, its pressure decreases, and vice versa, when the height of the fluid remains constant. In other words, when fluid flows through a pipe or a constricted region, the fluid's speed will increase, resulting in a decrease in pressure. The basic idea behind Bernoulli's principle is the principle of conservation of energy, which suggests that the total energy of a fluid system must remain constant.
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