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tangare [24]
3 years ago
12

Which of the following nuclear configurations is most stable?​

Physics
1 answer:
torisob [31]3 years ago
8 0

Answer:

D. A nucleus of 2 protons and 2 neutrons.

Explanation:

A stable nucleus is one that do not disintegrate naturally, majorly due to the even number of its protons and neutrons. Thus they are not radioactive in nature.

From the given question, it would be observed that a nucleus of 2 protons and 2 neutrons would give a helium atom. And this is a stable atoms due to the magnetic number of the components of its nucleus.

Thus, the nuclear configuration that is most stable out of the given options is a nucleus of 2 protons and 2 neutrons. Option D.

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The air within a piston equipped with a cylinder absorbs 565 J of heat and expands from an initial volume of 0.10 L to a final v
jeyben [28]

Answer:

489 J

Explanation:

According to the first law of thermodynamics:-

\Delta U = q + w

Where,

U is the internal energy

q is the heat

w is the work done

From the question,

q = + 565 J  (+ sign as the heat is being absorbed)

The expression for the calculation of work done is shown below as:

w=-P\times \Delta V

Where, P is the pressure

\Delta V is the change in volume

From the question,

\Delta V = 0.85 - 0.10 L = 0.75 L

P = 1.0 atm

w=-1.0\times0.75\ atmL

Also, 1 atmL = 101.3 J

So,

w=-1.0\times0.75\times 101.3\ J=-76\ J (work is done by the system)

So,

\Delta U = +565\ J-76\ J = 489\ J

5 0
3 years ago
6. If Dr. Swasey is like most psychologists, where does she probably work?
castortr0y [4]

Answer: University/college

Explanation:

A psychologist is someone who studies the cognitive, emotional, and mental states of people by observing and recording how people relate with each other and their environment.

Most psychologists are found in universities in order to help students who have emotional issues or seeking answers to certain questions.

4 0
3 years ago
Carbon and hydrogen are examples of pure substances or
bogdanovich [222]
Carbon and hydrogen are also examples of elements
6 0
3 years ago
PLEASE HELPPP
Ksju [112]
I think the answer is C
7 0
4 years ago
Read 2 more answers
HELP ASAP PLS!<br><br> Explain Newton’s 3 laws of motion by using the example of a rollercoaster.
dybincka [34]
For every action there is an equal and opposite reaction." So that applies to a roller coaster, between the ride vehicles and the track. When a ride goes up and down the hill, it creates different forces onto the track.
8 0
3 years ago
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