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How do you determine the half life of a radioactive substance that has changed through radioactive decay After 40 days the original substance left is is one sixteenth of the original amount?
To determine the half-life of the substance, you can use the fact that after one half-life, the substance will be reduced to half of its original amount. In this case, after 40 days, the substance is reduced to one sixteenth of its original amount, which represents 4 half-lives (since 1/2^4 = 1/16). Thus, each half-life of this substance is 10 days.
A sample of radioactive isotope has a halflife of 1 day how much of the original sample will be left at the end of the fourth day?
If a sample of radioactive material has a half-life of one week the original sample will have 50 percent of the original left at the end of the second week. The third week would be 25 percent of the sample. The fourth week would be 12.5 percent of the original sample.
How can this be used to calculate the amount of a radioactive element compared to its original amount?
To calculate the amount of a radioactive element compared to its original amount, you need to use the radioactive decay equation: A = A₀ * e^(-λt), where A is the final amount, A₀ is the initial amount, λ is the decay constant, and t is the time elapsed. By plugging in the values for A₀, t, and λ, you can determine the final amount of the radioactive element.
What describes how much a quantity decreases in comparison to the original amounts?
The percentage decrease quantifies how much a quantity reduces in relation to the original amount. It is calculated by dividing the decrease by the original amount and then multiplying by 100. This value provides a standardized measure to compare reductions of different quantities.
How much of a sample of radioisotope remains after one half-life?
One-half of the original amount. That's precisely the definition of "half-life".
How do you determine the half life of a radioactive substance that has changed through radioactive decay After 40 days the original substance left is is one sixteenth of the original amount?
To determine the half-life of the substance, you can use the fact that after one half-life, the substance will be reduced to half of its original amount. In this case, after 40 days, the substance is reduced to one sixteenth of its original amount, which represents 4 half-lives (since 1/2^4 = 1/16). Thus, each half-life of this substance is 10 days.
The amount of an original investment is called?
the amount of an original investment is called
What is the original amount if 9 was taken off leaving an amount of 1205.12?
The original amount was 1214.12
How you can subtract new amount from original amount?
To subtract a new amount from an original amount, simply take the original amount and subtract the new amount from it using the formula: Original Amount - New Amount = Result. For example, if the original amount is $100 and the new amount is $30, you would calculate $100 - $30, resulting in $70. This process can be applied to any numerical values to determine the difference.
How do you do you find the percent of change in numbers?
new amount minus original amount over original amount
How do you a multiplier to calculate a percentage increase?
percent increase=(new amount-original amount) _____________________ original amount
When the new amount is less than the original amount the percent of change is?
When the new amount is less than the original amount, the percent of change is negative. This indicates a decrease, which is calculated by taking the difference between the original amount and the new amount, dividing it by the original amount, and then multiplying by 100 to express it as a percentage. For example, if the original amount is 100 and the new amount is 80, the percent change would be -20%.
What shows and amount of increase or decrease from original amount?
To determine the increase or decrease from the original amount, you first need to calculate the difference between the new amount and the original amount. If the new amount is greater, it's an increase, and you can express it as a percentage of the original amount. Conversely, if the new amount is less, it's a decrease, which can also be represented as a percentage of the original amount. For precise calculations, specific numbers are needed.
What is the type of percent when the final amount is greater than the original amount?
Greater than 100 if the original amount is positive. Less than 100 if the original amount s negative.
What is The amount of change over the original amount and how much the original amount decreases is called the?
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What refers to the original amount of money borrowed?
The original amount of money borrowed is known as the principal.
How do you find out percent if you have original amount and new amount?
First you subtract the new number from the original number then divide it by the original number and multiply that by 100 original-new __________*100 original
