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yKpoI14uk [10]
3 years ago
12

Compare and contrast an electric discharge with an electric current

Physics
1 answer:
vlabodo [156]3 years ago
3 0
The electric current<span> is the number of electrons or charges passing through a conductor per units of time. 1 ampere = 1 coulombs / 1 second. </span>Electric discharge <span>is the consequence of disrupting an isolator (for example, air), thus causing a sudden flow of </span><span>electricity</span>
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Explain the origin of the magnitude designation for determining the brightness of stars. Why does it seem to go backward, with s
Mashcka [7]

Answer:

Hipparchus was an ancient Greek who classified stars based on the brightness in 129 B.C. He grouped the brightest stars and ranked them 1 (first magnitude) and dimmest stars as 6 (sixth magnitude). Thus, the smaller numbers indicated brighter stars. Now, the scale extends in negative axis as well. More the negative number, brighter is the star. For example, Sun has magnitude -26.74.

This the apparent magnitude which means the classification is based on the brightness of the star as it appears from the Earth.

5 0
3 years ago
3. Do you have an issue with the NSA monitoring citizens’ phone calls, text messages, emails, etc.?
goblinko [34]
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8 0
3 years ago
In a very busy off-campus eatery one chef sends a 201 g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter fro
Murrr4er [49]

Answer:

The correct answer is:

(A) to the left

(B) at speed -0.8725 m/s

Explanation:

The given values are:

Plate 1:

Mass,

m₁ = 201 g

Velocity,

v₁ = +1.79 m/s

Plate 2:

Mass,

m₁ = 335 g

Velocity,

v₁ = -2.47 m/s

According to the conservation of momentum, we get

⇒  m_1v_1+m_2v_2=(m_1+m_2)v

then,

⇒  v=\frac{m_1v_1+m_2v_2}{m_1+m_2}

On substituting the values, we get

⇒     =\frac{201\times 1.79+335\times (-2.47)}{201+335}

⇒     =\frac{359.79-827.45}{536}

⇒     =\frac{-467.66}{536}

⇒     =-0.8725 (to the left)

3 0
2 years ago
The focal length of a concave lens 13.3 cm.Calculate its power.​
cricket20 [7]

Explanation:

Formula for finding power : 1/f

Substitution of values:

1 /13.3 = 0.07518 cm

Please mark it as Brainliest!

4 0
3 years ago
Which of the following controls the loudness of a sound?
GarryVolchara [31]
The answer is amplitude hope you get it right
8 0
3 years ago
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