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
Kaylis [27]
3 years ago
14

Which best describes the current atomic theory?

Physics
2 answers:
ivolga24 [154]3 years ago
6 0
Choice-C is a correct statement.
taurus [48]3 years ago
5 0

C. it is the most powerful explanation scientists have to offer at this time. I am 100% right, I just finish the test and got it right.

You might be interested in
The potential energy stored in the compressed spring of a dart gun, with a spring constant of 32.50 N/m, is 0.640 J. Find by how
liraira [26]

Answer:

A

   x = 0.198456 \ m

B

    h  =  1.3061 \  m

C

 v =  5.06 \  m/s

D

  d = 4.0273 \  m

Explanation:

Considering the first question

From the question we are told that

   The spring constant is  k  =  32.50 N/m

    The potential energy is  PE  =  0.640 \ J

Generally the potential  energy stored in spring  is mathematically represented as   PE  =  \frac{1}{2}  *  k  *  x^2

=>    0.640=  \frac{1}{2}  * 32.50  *  x^2  

=>    x = \sqrt{0.03938}  

=>    x = 0.198456 \ m  

Considering the second question

 From the question we are told that

   The mass of the dart is  m =  0.050 kg

Generally from the law of energy conservation

         PE =  mgh

=>       0.640   =  0.050 *  9.8  *  h

=>      h  =  1.3061 \  m

Considering the third  question

   The height at which the dart was fired horizontally is  H  =   3.90\  m

Generally  from the law of energy conservation

         PE = KE

Here  KE is kinetic energy of the dart which is mathematical represented as

     KE  =  \frac{1}{2}  *  mv^2

=>      0.640 =  \frac{1}{2}  * 0.050 *  v^2

=>       v^2 = 25.6

=>       v =  5.06 \  m/s

Considering the fourth question

Generally the total time of flight of the dart is mathematically represented as

       t  =  \frac{ 2 *  H }{g}

=>     t  =  \frac{ 2 * 3.90 }{9.8 }

=>     t  =  0.7959 \ s

Generally the  horizontal distance from the equilibrium position to the ground is  mathematically represented as

       d =  v  *   t

=>     d = 5.06  *   0.7959

=>     d = 4.0273 \  m

5 0
3 years ago
1 point
Yuliya22 [10]
PE= 3kg x 10N/kg x 10m
= 300J
8 0
3 years ago
Charge: A piece of plastic has a net charge of +2.00 μC. How many more protons than electrons does this piece of plastic have? (
snow_lady [41]

Answer

given,

net charge = +2.00 μC

we know,

1 coulomb charge =  6.28 x 10¹⁸electrons

1 micro coulomb  charge =  6.28 x 10¹⁸ x 10⁻⁶ electron

                                         = 6.28 x 10¹² electrons

2.00 μC = 2 x 6.28 x 10¹² electrons

              = 1.256 x 10¹³ electrons

since net charge is positive.

The number of protons should be 1.256 x 10¹³ more than electrons.

hence, +2.00 μC have 1.256 x 10¹³ more protons than electrons.

6 0
3 years ago
Which type of comb would be best to use in the winter, a plastic comb or a glass comb? Explain using the Triboelectric series.
leonid [27]

Answer:

I'm not sure how to use it using the Series, but it would be the plastic comb

Explanation:

In the winter, it's likely to be cold and the glass would absorb that energy, also making it cold. in order to be able to hold it, you would need something warm, thus making the plastic one the better option as it is less likely to absorb the cold energy

7 0
3 years ago
Almost everything in the universe orbits around a central object. The planets orbit the sun and moons orbit planets. The force M
DanielleElmas [232]
Gravity is why orbits are happening.
3 0
3 years ago
Read 2 more answers
Other questions:
  • 0.2000 kg of water at 20.00°C is contained in a 0.1000-kg copper container. The container is shaken vigorously for 10.00 minutes
    5·1 answer
  • 17. Ms. Lopez is being chased by a Komodo dragon. She has an initial velocity of 7 m/s
    6·1 answer
  • All of the following are environmental factors that affect human development except _____.
    6·1 answer
  • When two point charges are a distance dd part, the electric force that each one feels from the other has magnitude F.F . In orde
    7·1 answer
  • Which formula can be used to express the law of conservation of momentum, where p=momentum
    7·2 answers
  • Explain why a steel block sinks but a steel ship floats
    7·1 answer
  • What are the forces that act on the ball?​
    9·1 answer
  • A electric engine transfers 300j into kinetic energy, 280j into heat energy, and 160j into sound energy. What is the efficiency
    12·1 answer
  • Is calculating the change of velocity the same as calculating acceleration? ​
    13·1 answer
  • 11. A box with a mass of 1.0 kg is resting on a horizontal surface and the coefficient of friction between the block and the sur
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!