Question

In 5 days a 10.0mg sample of radioactive material decays to 3.5mg. based on this information what is the half life?

Answer 1

Hm. Do you have an exponential decay function to work with?

Answer 2

Current quantity = original quantity times e raised to the power (elaspsed time / half life), if I remember correctly, or \[Q=Q _{0}e ^{t/h}\]. Plug in and solve for half life; you have everything else you need.

Answer 3

Oops. I think my exponent is missing a k, specifically -ln(2). So the correct exponent, if I'm right, is e^(-t ln2)/h

Answer 4

For the original question you pursued, explain how the "Five Steps For Coming to an Ethical Decision" can help shape your opinion.

Answer 5

A scientist counted the average number of plant species found in six plots of land that were each a square kilometer in size.

Answer 6

Orgo II Tutorial: -OH Synthesis Methods from Alkenes

Answer 7

A food manufacturer performs a study on their new brand of cereal. In the study, the food manufacturer compares their brand of cereal to two other brands in

Answer 8

Keiko did an experiment to find out how aspirin affects tissue repair rates in rabbits.

Answer 9

Orgo II Tutorial: Oxymercuration-Demurcuration

Answer 10

Which of the following explanations supports Yolanda's conclusion?

Answer 11

Read the passage and answer the question below.
u201cThey expressed their great satisfaction, saying that no greater good could come to them than to have ou

Answer 12

Guidance on how to draw a fractional distillation curve from separating toluene and cyclohexane? I am given: Cyclohexane has a boiling point of 80.

Answer 13

Should resources be protected or extracted and used by society? Explain your answer.

Answer 14

If Bill Weasley got elected to the Congress he would be accountable to his ____________ since they put him there.

Answer 15

Read the following poem and analyze it for ideas, themes, and values that reflect the Puritan era.

Answer 16

Dilations

Answer 17

In 1921, Albert Einstein, a highly regarded scientist, won the Nobel Prize in Physics.

Answer 18

A letter or menu command that starts an action when the user presses the designat

Answer 19

The narrator's description of Kunthi as "a thin, slight girl" connotes that _____.

Answer 20

One goal of both the United States and the USSR during the arms race was to
develop more powerful armies.

Answer 21

Exterior angle

Answer 22

Mel and John leave Desert Point at the same time. Mel drives north and John drives east.

Answer 23

Solve for x