Answer:
He started factories and mills. He created World's first water- powered mill at Cromford, where he employed more than 200 people. This was just the beginning of the many factories which he would later set up. Because of this, Arkwright was known as the father of the modern industrial factory system........Hope you got it
Answer:
2.10 × 10⁹ yr
Step-by-step explanation:
The half-life of U-235 is the time it takes for half the U to decay.
After one half-life, half (50 %) of the original amount will remain.
After a second half-life, half of that amount (25 %) will remain, and so on.
We can construct a table as follows:
No. of Fraction Amount
<u>half-lives</u> <u>t/(yr × 10⁶)</u> <u>remaining</u> <u>remaining/g </u>
1 700 ½ 10.0
2 1400 ¼ 5.00
3 2100 ⅛ 2.50
4 2800 ¹/₁₆ 1.25
We see that 2100 × 10⁶ yr is three half-lives, and the amount of U-235 remaining is 2.50 g.
It takes 2.10× 10⁹ yr for the U-238 to decay to 2.50 g.
I’m not sure bro but I think the answer is D I’m like 80% sure if it’s right
Answer:
The best answer is A.
(Newton’s “Mathematica” is not exactly new, and not filled with errors).
Explanation: