The uncertainty of the heavy object if the scale remains constant is 0.24 lbs.
<h3>What is uncertainty in measurement?</h3>
- This is the error associated in an attempt measure the object accurately.
The percent uncertainty in measuring the light weight object is calculated as follows;

The uncertainty of the heavy object if the scale remains constant is calculated as follows;

Learn more about percent uncertainty here: brainly.com/question/5493941
Answer:
The answer to your question is: letter D
Explanation:
Fussion: means combine 2 light nucleus to form heavier nucleus.
Fission: means splitting heavy nucleus to form lighter nucleus.
In the figure we can see two light nucleus that combine to form heavier nucleus, so the answer is nuclear fussion.
I think you always draw the gravity component. I'm not exactly sure though.