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Author Question: Solve.A beam of light enters sea water with initial intensity I0. Its intensity at a depth of x ... (Read 245 times)

clmills979

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on: Jun 16, 2021

Question 1

The half-life of an element is 4.9 × 108 yr.  How long does it take a sample of the element to decay to  of its original mass?  Express results in scientific notation, rounded to the nearest hundredth.
◦ 5.36 × 108 yr
◦ 6.48 × 108 yr
◦ 3.11 × 108 yr
◦ 1.09 × 108 yr

Question 2

Solve.

A beam of light enters sea water with initial intensity I0.  Its intensity at a depth of x meters is given by
 
 
What percentage of I0 remains at a depth of sea water of 1.5 meters?
◦ 11%
◦ 12.2%
◦ 87.8%
◦ 11.5%
Calculus and Its Applications ¦ Bittinger, Ellenbogen, Surgent ¦ 11th Edition
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Marked as best answer by clmills979 on Jun 16, 2021

kthug

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Reply #1 on: Jun 16, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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clmills979

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Reply 2 on: Jun 16, 2021
:D TYSM

amit

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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