The increasing number of Mnemiosis jellyfish blooms are harming not only the fishing industry but also the power industry.
Mnemiosis jellyfish can hatch over 40,000 eggs every day. These blooms feed on the larvae and eggs of fishes, especially from those native from the Black Sea, which has led to a shrinking in the total amount of fish. The reduction caused by this type of jellyfish is costing the fishing industries millions of dollars.
At the same time, the jellyfish swarms are affecting power plants in countries such as Japan, Israel, and Scotland. This is due to them congesting on the power plants, thus causing people to lose electricity.
Recently, a possible solution has appeared. The Bereo jellyfish, a different species that feeds on the Mnemiopsis jellyfish, has entered the Black Sea's ecosystem and created a new balance. But scientists fear that introducing a new speacies in other seas might cause negative consequences for their ecosystems.
Answer:
86.7%.
Explanation:
Considering the diagram, the path of the tip of the blades is a circle.
Hence, determine the circumference of the circle.
C = 2πr = 2π * 3 ft = 6π ft.
Then determine how long the blade edges are all together.
6 in * 5 blades = 30 inches
Therefore, to determine the fraction of the circumference of 30 inches, convert circumference to inches
6π ft * (12 in ÷ 1 ft) = 72π in.
Hence, the probability of Gerald’s randomly timed shot hitting a blade of the windmill
=> 30 ÷ 72π
=> 30 ÷ [72 * (22/7)]
= 13.3%.
Finally, the probability of his shot getting past the blades is then 100 – 13.3 = 86.7%.
It’s the quality and and value of the content of the books some are to be swallowed and tasted
