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238, The isotope of plutonium * Pu is used to make thermoelectric power sources for spacecraft. Suppose that a space probe was 238, launched in 2012 with 3.0 kg of 5°P.. Part: 0/2 Part 1 of 2 (a) If the half-life of 238, Pu is 87.7 yr, write a function of the form Q() = Q,e hi to model the quantity Q (1) of 238 Pu left after t years. Round the value of k to five decimal places. Do not round intermediate calculations. Q (t) = 0.00790 Part: 1/2

238, The isotope of plutonium * Pu is used to make thermoelectric power sources for spacecraft. Suppose that a space probe was 238, launched in 2012 with 3.0 kg of 5°P.. Part: 0/2 Part 1 of 2 (a) If the half-life of 238, Pu is 87.7 yr, write a function of the form Q() = Q,e hi to model the quantity Q (1) of 238 Pu left after t years. Round the value of k to five decimal places. Do not round intermediate calculations. Q (t) = 0.00790 Part: 1/2

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter18: Nuclear Reactions
Section: Chapter Questions
Problem 81QAP
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238, The isotope of plutonium * Pu is used to make thermoelectric power sources for spacecraft. Suppose that a space probe was 238, launched in 2012 with 3.0 kg of 25° Pu. Part: 0 /2 Part 1 of 2 (a) If the half-life of 238, Pu is 87.7 yr, write a function of the form Q() = Q,e hi to model the quantity Q (1) of 238 Pu left after t years. Round the value of k to five decimal places. Do not round intermediate calculations. Q (t) = 0.00790 Part: 1/2 Part 2 of 2 238. (b) If 1.6 kg of ° Pu is required to power the spacecraft's data transmitter, for how long after launch would scientists be able to receive data? Round to the nearest year. Do not round intermediate calculations. Scientists will be able to receive data for approximately уг.
Transcribed Image Text:238, The isotope of plutonium * Pu is used to make thermoelectric power sources for spacecraft. Suppose that a space probe was 238, launched in 2012 with 3.0 kg of 25° Pu. Part: 0 /2 Part 1 of 2 (a) If the half-life of 238, Pu is 87.7 yr, write a function of the form Q() = Q,e hi to model the quantity Q (1) of 238 Pu left after t years. Round the value of k to five decimal places. Do not round intermediate calculations. Q (t) = 0.00790 Part: 1/2 Part 2 of 2 238. (b) If 1.6 kg of ° Pu is required to power the spacecraft's data transmitter, for how long after launch would scientists be able to receive data? Round to the nearest year. Do not round intermediate calculations. Scientists will be able to receive data for approximately уг.
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