Answer:
1.846....hours
Explanation:
since if we divide 12 km or just 12 by 6.5 we will get this number meaning that this is how long it would take someone
Answer:
1. False
2. True
3. True
Explanation:
1- False —> The relation between electric potential and electric field is given such that
![-\int\limits^a_b \vec{E}d\vec{l} = V_{ab}](https://tex.z-dn.net/?f=-%5Cint%5Climits%5Ea_b%20%5Cvec%7BE%7Dd%5Cvec%7Bl%7D%20%3D%20V_%7Bab%7D)
Therefore, for a uniform E field, electric potential is linearly proportional to the distance.
2- True —> The electric field lines always cross the equipotential lines perpendicularly.
3- True —> In order to be a potential difference, one source of electric field is enough. The electric potential will decrease radially according to the following formula:
![V = \frac{1}{4\pi\epsilon_0}\frac{q}{r^2}](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B1%7D%7B4%5Cpi%5Cepsilon_0%7D%5Cfrac%7Bq%7D%7Br%5E2%7D)
There is no test charge in the formula, only the source charge. Even when there is no test charge, the potential difference between points in space can exist.
The correct answer is - a. was a sign of danger.
Once the people saw that the ocean waters are receding and were living vast space without water behind them, they knew that something big and very dangerous will happen. And in fact it did. The water that was sucked in in the place were there was a crack on the ocean floor, got shot back under big pressure and it had very big speed, as well as having waves that were destroying anything on their way.