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Dmitriy789 [7]
3 years ago
9

The nucleus of any atom requires a strong force to hold it together. This strong force is required because A) the nucleus of any

atom is so small. B) protons and neutrons repel each other. C) positive protons in the nucleus repel each other. D) the charges of the protons and the electrons cancel each other out.
Physics
2 answers:
Ratling [72]3 years ago
6 0
So I am not 100% on this but when I was learning about atoms I remember that the<span> charge: the amount of the charge has nothing to do with size. I think that electrons cancel out protons so that there is only one real Charge going</span>
<span>

</span>
Svetlanka [38]3 years ago
6 0

For Future Students The Answer is C) positive protons in the nucleus repel each other. I can confirm this because I just took the test. Hope this helped

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A rope is vibrating so as to form the standing wave pattern shown. How many antinodes are present in the rope?a- 5b- 4c- 8d- 10e
denpristay [2]

c) 8

Explanation

When you shake a rope, the particles in the rope move up and down, and the wave moves forward or away from the source of energy. The rope moves in a direction that is perpendicular

Nodes are the places where the rope doesn't move at all; antinodes occur where the motion is greatest.

Step 1

let's check the graph:

a) Nodes

and Antinodes

so, in the ripe there are 8 antinodes

therefore, the answer is

c) 8

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4 0
1 year ago
Which of the following is not true about elements.
alexgriva [62]

Answer:

C

Explanation:

elements are classified as covalent, ionic, metallic

8 0
3 years ago
What is the wavelength of a wave that is traveling at 343 m/s with a frequency of 1000 Hz
ZanzabumX [31]

Answer:

343 \div 1000 = 0.343

wavelength is equivalent to the velocity divided by the frequency

3 0
3 years ago
NEED HELP please.
WARRIOR [948]

Answer:

1. 23°

2. 65°

Explanation:

1.

The law of reflection provides that for the same medium, the angle of reflection equals the angle of incidence.

Similarly, here, angle of incidence and reflection will be 46°÷2=23°

2. Since the normal, angles of reflection and incidence lie on the same plane and also the angles of reflection and incidence are equal then the angle between the plane of the mirror and the reflected beam will be given by 90-25=65°

5 0
3 years ago
A small remote controlled car with mass 1.60 kg moves at a constant speed of12.0 m/s in a vertical circle with a radius of 5.0 m
kenny6666 [7]

Answer:

61.76 N.

Explanation:

Given the mass of the car, m = 1.60 kg.

The speed of the car, v = 12.0 m/s.

The radius of the circle, r = 5 m.

As car is moving in circular motion, so net force ( normal force + weight of the car) is equal to centripetal force enables the car to reamins in circular path.

Let N is the normal force.

So, N - mg = F_c

N-mg=\frac{mv^2}{r}

Now substitute the given values, we get

N-1.60kg\times9.8m/s^2=\frac{1.60kg\times(12.0m/s)^2}{5.0m}

N=15.68+46.08

N = 61.76  N.

Thus, the magnitude ofthe normal force exerted on the car by the walls is 61.76 N.

5 0
3 years ago
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