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trapecia [35]
3 years ago
13

A particle with a charge of 2e moves between two points which have a potential difference of 75V. What is the change in potentia

l energy of the particle?
Physics
1 answer:
Sonbull [250]3 years ago
5 0
Electric potential energy is defined as Ep=Q*V where Q is the magnitude of the charge and V is the potential difference. So when a charge moves between the points that have a potential difference, it's energy changes. 

In our case: 

Q=2e=2*(-1.6*10^-19) C
V=75 V

Ep=(-3.2*10^-19)*75

Ep=-2.4*10^-17 J

The change in potential energy of the charge is -2.4*10^-17 J 
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Vaselesa [24]

Answer:

Explanation:

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All the visitor needs to do is run more than 7 kmph to reduce the days time. For example, running at 11 kmph takes him or her exactly 1 hour to reach the shore, before taking another swim of about an hour to reach the reef

4 0
3 years ago
What is meant by the term resistance?
kondor19780726 [428]

Answer:

Definiton 1.the refusal to accept or comply with something; the attempt to prevent something by action or argument

Definition 2. the ability not to be affected by something, especially adversely

Definition 3. the impeding, slowing, or stopping effect exerted by one material thing on another

Definiton 4: the degree to which a substance or device opposes the passage of an electric current, causing energy dissipation. Ohm's law resistance (measured in ohms) is equal to the voltage divided by the current.

Explanation:

<em>Hope this Helps! If not Correct me!</em>

5 0
3 years ago
Who theorized that electromagnetic radiation is emitted from a black hole due to quantum effects near the event horizon. Hint: A
wolverine [178]

Answer:

Stephen William Hawking

Explanation:

Stephen William Hawking was a popular theoretical physicist born on  8th January 1942.

He served as the professor of mathematics at the Cambridge university

He was director at the center for theoretical cosmology.

He has theorized that the black holes will emit radiations and the radiations is known by his name Hawking's radiation.

His book 'The Brief History of Time' appeared as one of the best seller according to the Sunday Times.

Hawking's was diagnosed for a rare disease named as motor neuron disease.

He received numerous awards and elected as the fellow of royal society.

He passed away on 14th March 2018.

6 0
3 years ago
The measure of an angle is 4y°. Find the measure of its supplement. A) (180 + 4y)° B) (180 - 4y)° C) (90 + 4y)° D) (90 - 4y)°
Viefleur [7K]
Answer:  [B]:  " (180 <span>- 4y)° " .
_______________________________________________________</span>
3 0
3 years ago
Read 2 more answers
The following three resistors (Ohms) are in parallel with one voltage source. What is the total current running through circuit?
Zepler [3.9K]

Explanation:

The total resistance Rt is given by

1/Rt = 1/Ra + 1/Rb + 1/Rc = 1/5 + 1/4 + 1/7 = 0.593

or Rt = 1.69 ohms

The total current I running through the circuit is

I = V/Rt = 2.37 A

6 0
3 years ago
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