Answer:
A measurement is reliable if you repeat it and get the same or a similar answer over and over again, and an experiment is reliable if it gives the same result when you repeat the entire experiment.
Explanation:
Explanation:
Given that,
The distance between two conducting plates is 7 cm.
The difference in potential between the plates is 560 V.
To find,
We need to tell is the positive or the negative plate at the higher potential?
Solution,
We know that the electric potential is defined as the work done in moving a test charge from one position to another. So, the positive plate is always at the higher potential.
Hence, this is the required solution.
Answer:
Amy's average speed is equal to Chris's average speed.
Explanation:
Average speed is the ratio of total distance and total time interval
So here for Amy we know that
now the average speed of Amy is given as
Similarly for Chris we will have
average speed =
so correct answer is
Amy's average speed is equal to Chris's average speed.
Forces of gravity depend on quantities of mass, whereas electrical forces depend on quantities of net charge.
If gravitational forces dominate over electrical forces, it can only be because the amounts of net charge involved are much much much much much smaller than the amounts of mass involved.
What I'm saying is ... this doesn't mean that there aren't huge amounts of electric charge present in stars, planets, comets, and other astronomical objects. But most of the charges are BALANCED ... there are equal amounts of positive and negative charge present in the same object, and there's very little of either kind <em>left over,</em> to be attracted or repelled by other objects.
<span>The minimum energy required for isomerization is 267 000 J/mol
</span>
The isomerization of cis-but-2-ene to trans-but-2-ene requires breaking of the π bond.
The bond energy of a C-C σ bond is 347 kJ/mol.
The bond energy of a C=C double bond (σ + π) is 614 kJ/mol.
So the bond energy of a π bond is (614 – 347) kJ/mol = 267 kJ/mol =
267 000 J/mol.