# Using the half-lives for 238U and 235U, the natural abundance of each isotope, and knowing the...

###### Question:

Using the half-lives for 238U and 235U, the natural abundance of each isotope, and knowing the density of uranium metal is 19.2 g/cm3, calculate the total decay rate (disintegrations per second) of uranium atoms in a solid sphere, 10 cm in diameter. Both 238U and 235U decay by alpha emission. The alpha particle energies are approximately 4.3 MeV and 4.7 MeV, respectfully. There is additional energy released in photons (gammas) and subsequent decay of daughter products. Ignoring all that, using only the primary alpha particle energies, calculate the heat generated in the sphere of uranium in watts.

#### Similar Solved Questions

##### What is the maximum power in kW available for regenerative braking at the beginning of a...
What is the maximum power in kW available for regenerative braking at the beginning of a uniform 10-second deceleration from 100 kph to a dead stop? How much energy (Wh) could be recovered by regenerative braking in a uniform 10- second deceleration from 100 kph to a dead stop? Parameters Value 2.8 ...
##### Question 1 of 1 - / 1 View Policies Current Attempt in Progress The mean breaking...
Question 1 of 1 - / 1 View Policies Current Attempt in Progress The mean breaking strength of a ceramic insulator must be at least 10 psi. The process by which this insulator is manufactured must show equivalence to this standard. If the process can manufacture insulators with a mean breaking streng...
##### QUESTION 3 A lightning bolt might carry a current of 100 A and last for about...
QUESTION 3 A lightning bolt might carry a current of 100 A and last for about 31 ms, as shown in the figure below. Determine the amount of charge (in coulombs) that is exchanged between ground and cloud is such a lightning bolt. (Enter your answer as a number without the units.) +i=10°...
##### 1. A shop produces pipes of 100cm length. But due to manufacturing errors, sometimes the pipes...
1. A shop produces pipes of 100cm length. But due to manufacturing errors, sometimes the pipes are too long or too short. Let X be the error in the length of pipes produced in a shop. X has the following probability distribution f(x)= A(1 - x)? if -1<x<1, otherwise a. Find A. b. Find the cumul...
##### CSM Shop is considering a four-year project to improve its production efficiency. Buying a new machine press for $545,000 is estimated to result in$197,000 in annual pretax cost savings. The press falls in the MACRS five-year class (see lecture notes), a
CSM Shop is considering a four-year project to improve its production efficiency. Buying a new machine press for $545,000 is estimated to result in$197,000 in annual pretax cost savings. The press falls in the MACRS five-year class, and it will have a market value at the end of ...
##### What is 0.004694 Converted into scientific notation?
what is 0.004694 Converted into scientific notation?...
##### Synthesis Questions Use available resources to help you answer the following questions. 1. Consider the Erlenmeyer...
Synthesis Questions Use available resources to help you answer the following questions. 1. Consider the Erlenmeyer flask with the stopper tightly inserted. How do you think the pressure would change if you doubled the number of molecules (moles) in the flask? Explain your prediction! 2. Based on you...
##### B P . The Sunne two large molecular groups A and B can react to form...
B P . The Sunne two large molecular groups A and B can react to form a macromolecule P. in the reaction A quilibrium constant for the reaction is ke/co, where he 3 and UM Initially, the concentration of molecular group A is A-0.1 M, the concentration of molecular croup B is B 02 M and the concentrat...
##### Top one Final Respondus LockDown Browser Webcam Que 1. ( 0) The ROC for this siis...
top one Final Respondus LockDown Browser Webcam Que 1. ( 0) The ROC for this siis •> 0.5 . 0.5 < 1<2 Question 2 1 Su're working with discrete-time signal z[k]that has 10 samples, and discrete-time signal h[k]that has 5 samples. You want mpute the convolution of these two signals (i...
##### Problem 5 (15%) Implement a full subtractor using only AND, OR. and NOT gates. A full...
Problem 5 (15%) Implement a full subtractor using only AND, OR. and NOT gates. A full subtractor does a single-bit subtraction, subtracting Y from X. The three inputs to the device are X, Y, and Bin (the borrow-in bit), and the 2 outputs are the difference bit D and the borrow-out bit Bout. Put a bo...
##### How do you multiply 7\sqrt { 11} \cdot 5\sqrt { 12}?
How do you multiply 7\sqrt { 11} \cdot 5\sqrt { 12}?...