1. A radioactive substance has a mean-life τ of 10 years. Assume we start with 471...
1. A radioactive substance has a mean-life τ of 10 years. Assume we start with 471 kg of the substance. How many kg of the substance will be left after 33 years?
Enter a number with one digit after the decimal point.
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1. A radioactive substance has a mean-life τ of 10 years. Assume
we start with 471...
Question 8 1 pts A radioactive substance has a mean-life T of 15 years. Assume we...
Question 8 1 pts A radioactive substance has a mean-life T of 15 years. Assume we start with 443 kg of the substance. How many kg of the substance will be left after 31 years? Enter a number with one digit after the decimal point.
a radioactive substance has a mean life of 20 years. assume we start with 255 kg...
a radioactive substance has a mean life of 20 years. assume we start with 255 kg of the substance. how many kg of the substance will be left at 366 years.
a radioactive substance has a mean life of 20 years
a radioactive substance has a mean life of 20 years
A radioactive substance has a half-life of 17.33 years. Use the formula n(t) = n0e^ −kt...
A radioactive substance has a half-life of 17.33 years. Use the formula n(t) = n0e^ −kt which tells you how much is left at time t > 0 to find how much of a 20-gm sample would remain one hundred years after it is collected. Round your answer to the nearest two decimal places.
a radioactive material has a half life of 7 days. how many radioactive isotopes are left...
a
radioactive material has a half life of 7 days. how many
radioactive isotopes are left after 33 hours, if you had 7000000
isotopes in the beginning?
Question 33 1 pts A radioactive material has a half life of 7 days. How many radioactive isotopes are left after 33 hours, if you had 7 000 000 isotopes in the beginning? Use 2 sig figs in your answer. < Previous Next >
Radioactive Decay - Half-life and Activity 1 Radioactive decay - Half-life Time 0 1000 21 31...
Radioactive Decay - Half-life and Activity 1 Radioactive decay - Half-life Time 0 1000 21 31 750 N 1.000.000 500,000 250,000 125,000 62,500 31.250 15.625 7813 3.506 1.953 977 51 6 500 7 BI . 101 250 125 0 tie 21.234.41516171819, 1012 Time in multiples of A radioactive sample's half-life is 30.2 years. 1 year = 365 days, 1 day = 24 hours, 1 hour - 60 minutes, 1 minute = 60 seconds (a) Find its decay constant in year...
Part III continued 6. The rate of decay of a radioactive substance is proportional to the amount present. Today we...
Part III continued 6. The rate of decay of a radioactive substance is proportional to the amount present. Today we have 10 grams of a radioactive substance. Given that 1/3 of the substance decays every 5 years, how much will be left 17 years from today? 7. Evaluate the following integrals: a) 5-4x-x2 dx, x2-x3
Part III continued 6. The rate of decay of a radioactive substance is proportional to the amount present. Today we have 10 grams of a...
please help with b-d! *10-19-1 A radioactive sample's half-life is 30.2 years 1 year - 365...
please help with b-d!
*10-19-1 A radioactive sample's half-life is 30.2 years 1 year - 365 days, 1 day - 24 hours, 1 hour 60 minutes, 1 minute - 60 seconds (a) Find its decay constant in year 1. Keep 4 decimal places. 0.6229 Correct (100,0%) Submit Find its decay constant in sl. Write the result in terms of 10 10,9 Keep 4 decimal places. 7.2764 Correct (100.0 Submit Case 1: The Initial sample is 3.30 kg. (b) What is...
need help with these two questions. Question 5 (1 point) Willmonite-35 is a newly found radioactive substance with...
need help with these two questions.
Question 5 (1 point) Willmonite-35 is a newly found radioactive substance with a half life of 450 years. How much of 14,000 grams of Willmonite-35 will be left after 180 years? Round to the nearest gram. Your Answer: Answer Question 6 (1 point) A 5.5-volt battery is connected to a series in which the inductance is 0.25 henry and the resistance is 8 ohms. Determine the current after 1 second if the initial current...
After 20 years a quantity of a radioactive substance has decayed to 60 grams, and at...
After 20 years a quantity of a radioactive substance has decayed to 60 grams, and at the end of 50 years to 40 grams. How many grams were there in the first place?
Question 8 1 pts A radioactive substance has a mean-life T of 15 years. Assume we start with 443 kg of the substance. How many kg of the substance will be left after 31 years? Enter a number with one digit after the decimal point.
a
radioactive material has a half life of 7 days. how many
radioactive isotopes are left after 33 hours, if you had 7000000
isotopes in the beginning?
Question 33 1 pts A radioactive material has a half life of 7 days. How many radioactive isotopes are left after 33 hours, if you had 7 000 000 isotopes in the beginning? Use 2 sig figs in your answer. < Previous Next >
Radioactive Decay - Half-life and Activity 1 Radioactive decay - Half-life Time 0 1000 21 31 750 N 1.000.000 500,000 250,000 125,000 62,500 31.250 15.625 7813 3.506 1.953 977 51 6 500 7 BI . 101 250 125 0 tie 21.234.41516171819, 1012 Time in multiples of A radioactive sample's half-life is 30.2 years. 1 year = 365 days, 1 day = 24 hours, 1 hour - 60 minutes, 1 minute = 60 seconds (a) Find its decay constant in year...
Part III continued 6. The rate of decay of a radioactive substance is proportional to the amount present. Today we have 10 grams of a radioactive substance. Given that 1/3 of the substance decays every 5 years, how much will be left 17 years from today? 7. Evaluate the following integrals: a) 5-4x-x2 dx, x2-x3
Part III continued 6. The rate of decay of a radioactive substance is proportional to the amount present. Today we have 10 grams of a...
please help with b-d!
*10-19-1 A radioactive sample's half-life is 30.2 years 1 year - 365 days, 1 day - 24 hours, 1 hour 60 minutes, 1 minute - 60 seconds (a) Find its decay constant in year 1. Keep 4 decimal places. 0.6229 Correct (100,0%) Submit Find its decay constant in sl. Write the result in terms of 10 10,9 Keep 4 decimal places. 7.2764 Correct (100.0 Submit Case 1: The Initial sample is 3.30 kg. (b) What is...
need help with these two questions.
Question 5 (1 point) Willmonite-35 is a newly found radioactive substance with a half life of 450 years. How much of 14,000 grams of Willmonite-35 will be left after 180 years? Round to the nearest gram. Your Answer: Answer Question 6 (1 point) A 5.5-volt battery is connected to a series in which the inductance is 0.25 henry and the resistance is 8 ohms. Determine the current after 1 second if the initial current...
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