We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
8. A. Calculate the amount of radioactive material left of a 255g sample, after 30 days,...
Calculate the amount of radioactive material left of a 255g sample, after 30 days, whose ½ life is 6 days.
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 >
A 175 ng sample of radioactive material has a half life of 8.8 days. How many ng of radioactive material is left after 3 half lives? Do not put units in your answer
After 1.96 days, the activity of a sample of an unknown type radioactive material has decreased to 91.2% of the initial activity. What is the half-life of this material?
I need some help figuring this one out and how to do it. 14.) One isotope of the radioactive element thorium is 227th, which undergoes a-decay according to the equation: 227Th → 223Ra + a. If the half-life of 227Th is 18.7 days, what is the rate of a- particle production, in a.s., from a sample of 510 ug of 22 Th? 227Th 227.0277 g.mol a. 5.0x1016 a:s! b. 5.8x1011 a.s -1 c. 5.8*108 a-s-1 d. 1.0x1012 a.s?
HELP PLEASE ITS ON ATOMIC MASS AND NUCLEAR PROCESSES thanks ˝ Astronomy homework - due Friday, Express all your answer in atomic mass units, u (See below.) There is another fusion process for converting hydrogen into helium in stars that have a mass of more than 1.5 M , where 1 M represents the mass of the sun. I've indicated some of the steps in this process below but left out one of the by-products of each reaction. Please determine...
question. Correct answers for each question will be made available once the maximum number of attempts have been made for each submission. Nuclear Physics - Binding Energy 1 Nuclear Physics - Binding Energy Fod work The above figure shows a nuclear reaction in which an alpha particle separates into individual nucleons. An a particle is a He nucleus (2 protons, 4 nucleons). The relevant rest masses are: He = 4.002602 u, neutron = 1.008665 u, proton = 1.007825 u. (a)...
QUESTION 18In balancing the nuclear reaction 238U =234X + alpha particle, the identity of element X is ___________.cannot determine from the information providedthaliumthoriumuraniumplutoniumQUESTION 19The decay of a radionuclide with a half-life of 4.3×105 years has a rate constant (in 1/years) equal to __________.6.2×1052.3×10-65.9×10-81.6×10-62.8×103QUESTION 20Radium was used to make glow-in-the-dark watches before it dawned on people that it may not be a good idea to put a strong radiation source on the public’s wrists. Suppose that your father (or grandfather) bought...
1. The "wavelength" of a wave describes a. the speed of its crests b. the distance between crests c. the height of its crests d. the frequency of its crests 2. Waves are important in physics because they carry a. energy b. frequency c. wavelength d. velocity 3. All waves a. transport energy through a vacuum b. have the same speed c. are part of the electromagnetic spectrum d. have wavelength, velocity and frequency 4. In the following list, which...
Item 1 In the case below, the original source material is given along with a sample of student work. Determine the type of plagiarism by clicking the appropriate radio button. Original Source Material Student Version Suppose you study a group of successful companies and you find that they emphasize customer focus, or quality improvement, or empowerment; how do you know that you haven't merely discovered the management practice equivalent of having buildings? How do you know that you've discovered something...