Physics, 10.04.2020 23:55, redstar215

Review Conceptual Example 11 before starting to solve this problem. The number of unstable nuclei remaining after a time t = 4.20 yr is N, and the number present initially is N0. Find the ratio N/N0 for each of the following.

(a) 14C6 (half-life = 5730 yr; Enter your answer to at least 4 significant figures.
(b) 15O8 (half-life = 122.2 s; use t = 1.00 h, since otherwise the answer is out of the range of your calculator)
(c) 3H1 (half-life = 12.33 yr).

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 02:10, CrownedQueen

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

Answers: 2

continue

Physics, 22.06.2019 03:30, ashah1260

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

Answers: 3

continue

Physics, 22.06.2019 06:30, haha81

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.

Answers: 1

continue

Physics, 22.06.2019 06:40, alicemareus

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

Answers: 1

continue

Do you know the correct answer?

Review Conceptual Example 11 before starting to solve this problem. The number of unstable nuclei re...