subject
Physics, 26.03.2021 17:00 dudedude1593

If you started with a 125g sample of U-235, how much of the sample would be remaining after 3 half-lives and how many years would have passed? (AKS 4b, DOK 1)
O A. 15.6g would remain after 2100 million years had passed.
O B. 12.5g would remain after 3000 million years had passed.
O C. 12.5g would remain after 2100 million years had passed.
D. 15.6g would remain after 3000 million years had passed.

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 23:20, pineapplepizaaaaa
Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?
Answers: 1
image
Physics, 22.06.2019 06:30, bluevibe
2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
Answers: 2
image
Physics, 22.06.2019 10:10, xavierfox1721
In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?
Answers: 1
image
Physics, 22.06.2019 12:30, spenceraniyah1
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above
Answers: 3
You know the right answer?
If you started with a 125g sample of U-235, how much of the sample would be remaining after 3 half-l...

Questions in other subjects: