1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sertanlavr [38]
3 years ago
10

The total number of protons and neutrons in the nucleus of an atom

Physics
1 answer:
rewona [7]3 years ago
5 0

Answer:

Is the mass number

Explanation:

Every atom is usually identified by using two different numbers:

- Atomic number: generally labelled with Z, corresponds to the number of protons in the nucleus, so Z = p

- Mass number: generally labelled with A, corresponds to the number of protons+neutrons in the nucleus, so A = p + n

To find the number of neutrons in a nucleus, therefore, we can do

n = A - Z

You might be interested in
How will the magnetic field of a straight wire carrying a constant current interact with the needle of a compass? Does the inter
Yuki888 [10]

Answer:

the needle will direct its North South according to the magnetic field of current carrying wire.

Explanation:

A current carrying wire always has a magnetic field around it, in circular loops. This magnetic field will be either clockwise or anticlockwise depending on the direction of current.

Right hand rule tells the direction. Place the current carrying wire in your right hand with thumb pointing the direction of current. Curl of the fingers tell the direction of current.

When the needle gets in the vicinity of the field, its poles aligns itself with the field. (previous position of the compass needle has no effect on its position in the field). The north pole and south pole will be set in the direction of magnetic field.

The distance between the needle and wire does effect the strength (accuracy) of the needle position. Strong field will create strong deflection of the needle whereas when the distance from wire increases, field weakens, thus the deflection of needle will be weak.

5 0
3 years ago
In this circuit the battery provides 3 V, the resistance R1 is 7 Ω, and R2 is 5 Ω. What is the current through resistor R2? Give
sveta [45]

Answer:

The current pass the R_2 is  I  = 0.25 A

Explanation:

The diagram for this question is shown on the first uploaded image  

From the question we are told that

    The voltage  is  V =  3V

     The first resistance is  R_1 = 7 \Omega

     The second resistance is  R_2 = 5 \Omega

Since the resistors are connected in series their equivalent resistance is  

       R_{eq} =  R_1 +R_2

Substituting values

         R_{eq} = 7 + 5

         R_{eq} = 12 \Omega

Since the resistance are connected in serie the current passing through the circuit  is the same current passing through R_2 which is mathematically evaluated as

        I  =  \frac{V}{R_{eq}}

Substituting values  

      I  =  \frac{3}{12}

      I  = 0.25 A

3 0
3 years ago
Under which circumstances would protesters’ right to assembly most likely be protected?
ICE Princess25 [194]

Answer:

Explanation:

Mob violence is never protected. Organizers are always careful about not letting things get out of hand. Not D

That remark sort of applies to C as well. Property destruction is never protected.

B is something assemblies are allowed to do. So B.

A falls into the same category as C and D. You may not like the fact that he/she is doing something illegal, but you can't take away their privacy.

7 0
2 years ago
Identify which of the following quantities can be described fully by its magnitude.
goldenfox [79]

Answer:

Energy

Explanation:

4 0
3 years ago
V (V)
Sergeeva-Olga [200]

Answer:

6755727gvbu7euyeue77377365353663636

Explanation:

ghfjfkjfjfn has a long way is a good relationship is a different person than the difference is that the answer is 8AM is a good relationship with the other 4AM in a certain way is a different type and have different effects and feelings and the difference is the difference is that you can do it for a long period and the same way you know what to smome but you can get to the claire family a lot of times and the difference between the two is that the person you want and you know it would have different opinions on the subject and then use the difference between the two and a half hour and the difference is that the answer is yes but if you're not going anywhere in the past two and your life you can do that with your 6 or an 6th year old girl who is a good things go to

4 0
3 years ago
Other questions:
  • A parallel-plate capacitor initially has a potential difference of 400 V and is then disconnected from the charging battery. If
    8·1 answer
  • The thinnest layer of the earth is the:
    15·2 answers
  • Which will result in positive buoyancy and cause the object to float?
    11·2 answers
  • Which graph illustrates constant speed and velocity?
    15·2 answers
  • What is the definition of conservation of energy
    5·2 answers
  • A solid sphere with a moment of inertia of 2.20 kgm2 is rolling along the ground (without slipping) with an angular velocity of
    12·1 answer
  • Car 1 drives 20 mph to the south, and car 2 drives 30 mph to the north. From the frame of reference of car 1, what is the veloci
    11·2 answers
  • URGENT!! An astronaut on the International Space Station is doing a spacewalk to fix a solar panel that has malfunctioned. While
    14·2 answers
  • A block of mass m is attached to the end of a spring (spring stiffness constant k ). The mass is given an initial displacement x
    12·1 answer
  • The diagram shows the electric field near conducting sphere a which of the following statements is correct
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!