The answer is D because when the positive charged side touches the negative charged side it nullifys part of the positively charged side, basically subtraction from my understanding?
The electric potential energy of the point charge is 4.
the electric potential energy of the point charge at 1.3 m is 5.2.
Answer:
11060M Joules, where M is the mass of the diver in kg
Explanation:
Mass of the skydiver missing, we're assuming it's M.
It's total energy is the sum of the contribution of his kinetic energy (K)- since he's moving at 50 m/s, and it's potential energy (U), since he's subject to earth gravity.
Energy is the sum of the two, so ![E = K+U= \frac 12 M v^2 + Mgh = M (\frac 12 \cdot 50^2 + 9.81\cdot 1000) = M ( 1250 + 9810) = 11060\cdot M](https://tex.z-dn.net/?f=E%20%3D%20K%2BU%3D%20%5Cfrac%2012%20M%20v%5E2%20%2B%20Mgh%20%3D%20M%20%28%5Cfrac%2012%20%5Ccdot%2050%5E2%20%2B%209.81%5Ccdot%201000%29%20%3D%20M%20%28%201250%20%2B%209810%29%20%3D%2011060%5Ccdot%20M)
Answer:
Many drivers follow the “three-second rule.” In other words, you should keep three seconds worth of space between your car and the car in front of you in order to maintain a safe following distance.
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