Answer:
B. neutrons
Explanation:
When a free neutron hits the nucleus of a fissile atom like uranium-235 (235U), the uranium splits into two smaller atoms called fission fragments, plus more neutrons. Fission can be self-sustaining because it produces more neutrons with the speed required to cause new fissions. This creates the chain reaction.
<u>Answer:</u>
<em>The property helps to explain this difference is forces between molecules.</em>
<em>Option c</em>
<u>Explanation:</u>
The exact heat of water is 
The exact heat of methane is 
This is due to the polarity and the hydrogen bonding.
It takes more energy to break these bonds than methane, therefore, we would think water to have a higher specific heat due to these active forces.
<em>So this property helps to explain there is differences in forces between molecules.</em>
Answer:
6 light years = 57 million km
Explanation:
Given;
A light year = 9.5 million km
To calculate how far is 6 light years;
6 light years = 6 × 1 light year = 6 × 9.5 million km
6 light years = 57 million km
<u>Answer;</u>
weak interaction
<h3><u>Explanation;</u></h3>
- The weak force is one of the four fundamental forces that govern all matter in the universe (the other three are gravity, electromagnetism and the strong force).
- <u><em>Weak interaction is the mechanism of interaction between subatomic particles that causes radioactive decay and thus plays an essential role in nuclear fission. Only weak interactions can cause the decay of fundamental particles.</em></u>
Answer: B and D
The forces are Unbalanced and Unequal. Some of the forces are drag, lift, side forces, Magnus force, spin damping force, pitch damping force, and Magnus cross force. The most important of these aerodynamic forces is drag. All the others are very small in comparison when the bullet is spin-stabilized.
Just because the forces are unequal, after travelling for some distance bullet it speed decreases and its path curves toward ground and if it goes without hitting anything it will eventually fall down.
