1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
melomori [17]
1 year ago
11

The half-life of iron-52 is approximately 8.3 hours.How much of a 13 gram sample of iron-52 would remain after 8 hours? Round to

three decimal places.
Mathematics
1 answer:
Alexandra [31]1 year ago
5 0

6.665 grams of the 13 grams remain after 8 hours.

<h3>How much of a 13 gram sample of iron-52 would remain after 8 hours?</h3>

The decay equation for the 13 grams of iron-52 is:

N(t) = 13g*e^{(-ln(2)/8.3h)*t}}

Where N is the amount of iron-52, and t is the time in years.

Where we used the fact that the half-life is exactly 8.3 hours.

Now, the amount that is left is given by N(8h), so we just need to replace the variable t by by 8 hours, so we get:

N(8h) = 13g*e^{(-ln(2)/8.3h)*8h}} = 6.665g

So 6.665 grams of the 13 grams remain after 8 hours.

If you want to learn more about half-life:

brainly.com/question/11152793

#SPJ1

You might be interested in
A certain brand of rice costs $0.88 for 6.8 ounces.
Slav-nsk [51]
All you need to do is divide .88 by 6.8.

.88/6.8= 0.129 (round upt to .13 cents)

I hope this helps!
3 0
3 years ago
Read 2 more answers
You bought 8 movie tickets for $x each. You spent a<br> total of $42 at the movies.
charle [14.2K]
8 divided by 42 = 5.25 which means you spent $5.25 on each ticket
3 0
2 years ago
Will and John sell lemonade at a lemonade stand. After an hour, they have taken in $4 for a total of 8 cups of lemonade. What is
Murljashka [212]

Answer:

The answer is A - $0.50 per cup

Step-by-step explanation:

If you divide the $4 by the 8 cups you get $0.50

5 0
3 years ago
For each of the following, find the transition matrix from B, to B, and the transition matrix from B2 to Bi. Be sure to label wh
artcher [175]

Answer:

Step-by-step explanation:

3 0
3 years ago
A car rental costs $32 as a base fee, plus $28 per day. Use the explicit rule f (n )= 28n + 32
alexdok [17]

Answer:

The charges paid for the first four days are:

  • <u>$144</u>.

Step-by-step explanation:

To obtain the charges paid for the first 4 days, you must use the given explicit rule given:

  • f (n) = 28n + 32

Where:

  • <em>n = Number of days the person rents the car.</em>

As we need to obtain the charges to 4 days, we replace this value in the explicit rule:

  • f (n) = 28n + 32
  • f (4) = 28(4) + 32
  • f (4) = 112 + 32
  • <u>f (4) = 144</u>

With these calculations, <u>you can identify the charges paid for the first 4 days are $144</u>, <em>where $112 is the money by each day of the four days and $32 is the base fee</em>.

3 0
3 years ago
Other questions:
  • Simplify 3/8+1/6 help
    8·1 answer
  • Given that Annie chooses a red shirt at random, what is the probability that the shirt will be large? Use the formula P(A | B)=
    7·1 answer
  • Simplify the expression. Write your answer as a power.
    12·1 answer
  • What is f(3)?<br> f(x)=(3x^2 +9)/x+1
    6·2 answers
  • Correct Amswer Wins 50 Points: solve 236/9
    10·2 answers
  • (9-3)+18÷8 <br>show your work ​
    15·2 answers
  • Help pls I don’t rlly understand
    7·1 answer
  • Use the relationship between the angles in the figure to answer the question.
    6·2 answers
  • If the length of diagonal of a square is 4√2 cm, find it's length, perimeter and area.​
    9·1 answer
  • write the explicit rule for the nth term of the arithmetic sequence. then find the 43rd term (3,5,7….)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!