7) An archaeologist finds the 14C in a sample of 15.3 dg of material to be decaying at 513 counts per second. A modern 1.1 ug sample of the same material decays at 79 counts per second. The half-life of 14C is 5730 y. How old is the sample?

Q: The amplitude of the wave shown is ---.

A: Answer is (d)  2 m, explanation is in next step

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A: The SI unit of speed is m/s.   Where m = meter,  s = second

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A: The value 146.88 can be written as,

Q: Which ones apply

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A: Time taken by an object to hit the ground=6 s Required height of object from which it was dropped.

Q: 17. 1.2 x103÷ 2.5 x 109 = ? A. 4.8 x10-13 B. 4.8 x105 C. 3.0 x 10-13 D. 3.0 x105

A:

Q: eif A-2itj-k B=i+2j+ 5k calculate A.B

A:

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A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

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A:

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A:

Q: 3 300M 300N 50 50° Find: B+ C F=?,

A: Please see the answer in next step

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A: Given: Side 1 (A) = 43 Side 2 (B) = 12

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A: Given Density of rod δ(x)=2+6x And length of the rod is 2m. Let's take a small element of length dx…

Q: IN the picture

A:

Q: Write a new scenario using different units

A: Magnitude is 15 .Direction is 25º North of East.