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lora16 [44]
3 years ago
10

What is the energy level of hydrogen?

Physics
1 answer:
barxatty [35]3 years ago
8 0

Answer:

The energies corresponding to each of the allowed orbitals are called energy levels.

Explanation:

A scientist known as Niels Bohr put forward that electrons in an atom covers some permitted orbitals with a specific energy. In other words, the energy of an electron in an atom is not continuous, but 'quantized.' The energies corresponding to each of the allowed orbitals are called energy levels.

E = -\frac{E_0}{n^2} \\where \\E_0 = 13.6 eV (1 eV = 1.602\times 10^{-19}Joules)\\and\ n = 1,2,3...

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What climate is characterized by constant high temperatures at sea level with an average temperature of 18 °C or higher, and is
kvasek [131]

Correct answer id option C that is tropical.

Tropical Climate is characterized by constant high temperature at sea level with an average temperature of 18°C or higher and is found near the equator.

Areas with tropical climate have high humidity and temperature. Countries in tropical region have high precipitation rate. Tropical climate is also known as equatorial climate. Tropical regions are found near equator. Due to high convection rate, there is abundant rainfall.

3 0
3 years ago
Read 2 more answers
In midair an M = 145 kg bomb explodes into two pieces of m1 = 115 kg and another, respectively. Before the explosion, the bomb w
Daniel [21]

Answer:

v_2=-133.17m/s, the minus meaning west.

Explanation:

We know that linear momentum must be conserved, so it will be the same before (p_i) and after (p_f) the explosion. We will take the east direction as positive.

Before the explosion we have p_i=m_iv_i=Mv_i.

After the explosion we have pieces 1 and 2, so p_f=m_1v_1+m_2v_2.

These equations must be vectorial but since we look at the instants before and after the explosions and the bomb fragments in only 2 pieces the problem can be simplified in one dimension with direction east-west.

Since we know momentum must be conserved we have:

Mv_i=m_1v_1+m_2v_2

Which means (since we want v_2 and M=m_1+m_2):

v_2=\frac{Mv_i-m_1v_1}{m_2}=\frac{Mv_i-m_1v_1}{M-m_1}

So for our values we have:

v_2=\frac{(145kg)(24m/s)-(115kg)(65m/s)}{(145kg-115kg)}=-133.17m/s

5 0
3 years ago
A Molniya orbit is a highly eccentric orbit of a communication satellite so as to provide continuous communications coverage for
likoan [24]

Answer:

Answer: 18.3 km/s

Explanation:

If a satellite in Molniya orbit has an apogee at 48.000 km as measured from the center of Earth, and a velocity of 3.7 km/s. Its velocity in at perigee would be 18.3 km/s.  

6 0
3 years ago
Read 2 more answers
The work done by a force is greatest when the force and the displacement vectors are ________.
gayaneshka [121]
The answer is B . Parallel
6 0
3 years ago
You are a geologist studying the electrical field on a given region. You find that the electric field is vertical and perpendicu
Xelga [282]

Answer:

charge      Qint = 7.17 10⁻⁴ C

Explanation:

For this problem we must use Gauss's law

       F = ∫ E. dA = Qint / εₙ

let's form a Gaussian surface that is parallel to the surface, for example, a Cube. As the field is vertical and perpendicular to the surface, the field lines and the area vector are parallel whereby the scalar product is reduced to an ordinary product.

    Φ = E A = Qint / ε₀

   

    A = 1 km² (1000 m / 1km)² = 1 10⁶ m²

We can calculate the charge

    Qint = E A ε₀

    Qint = 81 1 10⁶ 8.85 10⁻¹²

    Qint = 7.17 10⁻⁴ C

5 0
3 years ago
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