Explanation:
The circumference of a circle with radius 6 inches is 12π inches.
10minutes is 1/6 of the circle which is 60 minutes
Therefore the tip moves 1/6 of 12π = 2π inches
round off = 0.167
Answer:
14th centuries of the third-wave era:
By the middle of the 13th century , the chenghis khan controls the asia from the coast of china to black sea. Beginning with the agrarian civilisation, societies started to connect into large network of exchange is called trade. trade was important from the beginning.
As early 2300 BCE , civilisation in Mesopotamia in Egypt and Indus valley were in commercial relationship. Silk road enable small scale exchanges to expand dramatically , when the silk road is first opened , there has been opportunity for trade , the eastern end of silk road has been unsafe because the Chinese inability to control the nomads of mongols.
If the half-life is 5 minutes, then 30 minutes is equivalent to 6 half-lives. So, after six successive half-lives, the 400 mg of the radioisotope would have a mass of 400(0.5)⁶ = 6.25 mg.
Thus, A would be the correct answer choice here.
Answer:
listen to several styles of music and pay attention to his body’s response to each
Explanation:
