subject
Physics, 16.06.2020 22:57 flyingcerberus1408

The carbon dating method discussed in the video is useful for determining the ages of living materials that are a few thousand or a few tens of thousands years old. K-40 decays into Ar-40 with a half life of 1.2 billion years, making it suitable for estimating the age of very old astronomical objects (for the simplicity of this problem, we assume that this is the only possible decay for K-40). Assume that when a particular rock formed, it had a decay rate of 0.061 decays/sec/g, and it now has a decay rate of 0.015 decays/sec/g. Using the estimation method in the video, which is the closest estimate for the age of this rock? a. 0.3 billion years
b. 0.6 billion years
c. 1.2 billion years
d. 2.4 billion years
e. 4.8 billion years

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 22:00
•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?
Answers: 3
question
Physics, 22.06.2019 01:20
An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)
Answers: 1
question
Physics, 22.06.2019 12:50
The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.
Answers: 1
question
Physics, 22.06.2019 15:40
How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9
Answers: 1
You know the right answer?
The carbon dating method discussed in the video is useful for determining the ages of living materia...
Questions
question
Mathematics, 17.11.2020 22:40
question
Mathematics, 17.11.2020 22:40
question
Mathematics, 17.11.2020 22:40
question
History, 17.11.2020 22:40
question
Mathematics, 17.11.2020 22:40
question
Chemistry, 17.11.2020 22:40
question
Social Studies, 17.11.2020 22:40
question
Mathematics, 17.11.2020 22:40
question
Mathematics, 17.11.2020 22:40
Questions on the website: 13722365