Answer:
Electric potential energy at the negative terminal: ![1.92\cdot 10^{-18}J](https://tex.z-dn.net/?f=1.92%5Ccdot%2010%5E%7B-18%7DJ)
Explanation:
When a particle with charge
travels across a potential difference
, then its change in electric potential energy is
![\Delta U = q \Delta V](https://tex.z-dn.net/?f=%5CDelta%20U%20%3D%20q%20%5CDelta%20V)
In this problem, we know that:
The particle is an electron, so its charge is
![q=-1.60\cdot 10^{-19}C](https://tex.z-dn.net/?f=q%3D-1.60%5Ccdot%2010%5E%7B-19%7DC)
We also know that the positive terminal is at potential
![V_+=0V](https://tex.z-dn.net/?f=V_%2B%3D0V)
While the negative terminal is at potential
![V_-=-12 V](https://tex.z-dn.net/?f=V_-%3D-12%20V)
Therefore, the potential difference (final minus initial) is
![\Delta V = -12-0 = -12 V](https://tex.z-dn.net/?f=%5CDelta%20V%20%3D%20-12-0%20%3D%20-12%20V)
So, the change in potential energy of the electron is
![\Delta U = (-1.6\cdot 10^{-19})(-12)=1.92\cdot 10^{-18}J](https://tex.z-dn.net/?f=%5CDelta%20U%20%3D%20%28-1.6%5Ccdot%2010%5E%7B-19%7D%29%28-12%29%3D1.92%5Ccdot%2010%5E%7B-18%7DJ)
This means that the electron when it is at the negative terminal has
of energy more than when it is at the positive terminal.
Since the potential at the positive terminal is 0, this means that the electric potential energy of the electron at the negative end is
![1.92\cdot 10^{-18}J](https://tex.z-dn.net/?f=1.92%5Ccdot%2010%5E%7B-18%7DJ)
<h2>
Hey There!</h2><h2>
_____________________________________</h2><h2>
Answer:</h2>
![\huge\boxed{False}](https://tex.z-dn.net/?f=%5Chuge%5Cboxed%7BFalse%7D)
<h2>_____________________________________</h2><h3>ENDOTHERMIC REACTIONS:</h3>
Endothermic Reaction are those reactions in which the reactants absorb the energy from their surrounding and forms the product.
<h2>_____________________________________</h2><h3>How to know endothermic reaction?</h3>
Those changes in which a substance goes from More-ordered state to less-oredered state are endothermic. Where they change from less ordered to more ordered is exothermic.
More ordered means that the movement of vibration of the particles of the substance is less and the are more close to each other. More to less ordered state is given as,
Solid>Liquid>Gas.
<h2>_____________________________________</h2><h2>Question:</h2>
In the question it asks about the melting of the ice cube. Ice cube is a solid, and when it will melt, it will change into the liquid water. As we know that, Solid is more ordered and Liquid is less ordered, and The change from more-ordered to less-ordered is endothermic thus the answer is ENDOTHERMIC.
<h2>
_____________________________________</h2><h2>
Best Regards,</h2><h2>
'Borz'</h2><h2>
</h2>
Slime molds get energy by ingesting bacteria in the soil.
hope this helps. good luck
Answer:
Explanation:
The force of attraction between 2 masses.