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
olga nikolaevna [1]
3 years ago
6

The nucleus of an atom can have either a positive or negative charge. please select the best answer from the choices provided t

f
Physics
2 answers:
Airida [17]3 years ago
5 0
F - False.

The nucleus of an atom is positively charge.
Ivahew [28]3 years ago
3 0

Answer:

FALSE

Explanation:

Nucleus of an atom consist of neutrons and protons and it is the smallest part of atom.

So the total charge on the nucleus is due to charge of protons as we know that neutrons are neutral in nature and they do not have any charge on it.

So we will have

Q_{proton} = + 1.6 \times 10^{-19} C

Q_{neutron} = 0 C

Q_{electron} = - 1.6 \times 10^{-19} C

so here we can say that total charge on a nucleus must be positive charge which is only due to protons present inside the nucleus.

You might be interested in
A thin rod of length 1.4 m and mass 140 g is suspended freely from one end. It is pulled to one side and then allowed to swing l
m_a_m_a [10]

Answer:

a The kinetic energy is  KE = 0.0543 J

b The height of the center of mass above that position is  h = 1.372 \ m    

Explanation:

From the question we are told that

  The length of the rod is  L = 1.4m

   The mass of the rod m = 140 = \frac{140}{1000} = 0.140 \ kg  

   The angular speed at the lowest point is w = 1.09 \ rad/s

Generally moment of inertia of the rod about an axis that passes through its one end is

                   I = \frac{mL^2}{3}  

Substituting values

               I = \frac{(0.140) (1.4)^2}{3}

               I = 0.0915 \ kg \cdot m^2

Generally the  kinetic energy rod is mathematically represented as

             KE = \frac{1}{2} Iw^2

                    KE = \frac{1}{2} (0.0915) (1.09)^2

                           KE = 0.0543 J

From the law of conservation of energy

The kinetic energy of the rod during motion =  The potential energy of the rod at the highest point

   Therefore

                   KE = PE = mgh

                        0.0543 = mgh

                             h = \frac{0.0543}{9.8 * 0.140}

                                h = 1.372 \ m    

                 

5 0
3 years ago
Read 2 more answers
What statement is true about earth tectonic plates
DaniilM [7]
Continent jig-saw shapes when puzzled and combined together, formed one big continent - Pangea, and was separated by drifts.

Fossil comparisons of different species were discovered into two different, separated continents in which when you combine them, they were one in the past.

Seismic, volcanic, and geothermal activity are found along imagined plate boundaries. 

Plates were actually rubbing against each other as evidence is seen on the formed mountain ranges.
<span>
Paleomagnetism, magnetic field placement in the layers of the rock are present.</span>
3 0
4 years ago
Read 2 more answers
A person is attracted toward the centerof the earth by a 500 n gravitational force. the force with which the earth is attracted
nignag [31]
500 N  is the answer, you just tell that the moon is attracted towards the person because of the Earth's huge mass. 
4 0
3 years ago
The magnitude of each force is 208 N the force on the right is applied at an angle 36° and the mass of the block is 17 kg the co
djyliett [7]

Answer:

<em>11.06m/s²</em>

Explanation:

According to Newtons second law of motion

\sm F_x = ma_x\\F_m - F_f = ma_x\\mgsin \theta - \mu R mgcos \theta = ma_x\\

Given

Mass m = 17kg

Fm = 208N

theta = 36 degrees

g = 9.8m/s²

a is the acceleration

Substitute

208 - 0.148(17)(9.8)cos 36 = 17a

208 - 24.6568cos36 = 17a

208 - 19.9478 = 17a

188.05 = 17a

a = 188.05/17

a = 11.06m/s²

<em>Hence the  the magnitude of the resulting acceleration is 11.06m/s²</em>

6 0
3 years ago
GETS BRAINILIST!!!!Which of the following will increase the gravitational force exerted by one object on another? Increasing the
jeka94

Answer:

C. Decreasing the distance between the objects.

Explanation:

Gravitational force depends on mass and distance. The farther the objects are apart, the less gravitational force/pull they have.

5 0
4 years ago
Other questions:
  • Please help with these physics problems 1. A soccer ball is dropped from the top of a building. It takes 5.8 seconds to fall to
    13·1 answer
  • How to change V=72km/hr to m/s
    9·1 answer
  • How far from a converging lens with a focal length of 16 cm should an object be placed to produce a real image which is the same
    9·1 answer
  • A ductile metal wire has resistance R. What will be the resistance of this wire in terms of R if it is stretched to three times
    12·1 answer
  • PLEASE HELP ME 20 POINTS AND I WILL MARK BRAINLIEST!!!
    10·2 answers
  • Bohr found experimental evidence for his atomic model by studying what?
    13·1 answer
  • The resistance of moving surfaces produces
    10·2 answers
  • A sail boat moves north for a distance of 10 km when blown by a wind 30° east of south with the force of 5.00×10^4 N. how much w
    5·1 answer
  • Analyze the explanation and identify any false statements. Each statement to be analyzed is identified by a capital letter. A ba
    8·1 answer
  • When a low-pressure gas of hydrogen atoms is placed in a tube and a large voltage is applied to the end of the tube, the atoms w
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!