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Liono4ka [1.6K]
3 years ago
7

The charge of an electronic is A.-2 B.-1 C.0 D.+1

Physics
1 answer:
NISA [10]3 years ago
6 0
It is given that the charge of an electron is -1.602x10^-19. When expressed in atomic units, the elementary charge (<span>1.602x10^-19</span>) is equal to the value of unity (1). Since an electron carries a negative charge, the charge should be equal to negative unity, or -1.
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What do scientists theorize about the origins of the Moon? Choose the most accepted explanation.
Darina [25.2K]

Answer:

What is most widely accepted today is a the giant-impact theory. It proposes that the Moon formed during a collision between the Earth and another small planet, about the size of Mars. The debris from this impact collected in an orbit around Earth to form the Moon.

8 0
2 years ago
If you double the voltage in a circuit and reduce the resistance by a factor of four what will happen to the current? A) it will
KatRina [158]
By Ohm's Law, we can relate current, voltage and resistance. It is expressed as V=IR. That is, there is a direct relationship between voltage and resistance and voltage and current.

V = IR
V1/2V1 = I1R1 / I2R1/4
1/2 = 4I1/I2
I2 = 8I1

Therefore, <span> it will increase by a factor of 8. Hope this answers the question.</span>
5 0
3 years ago
Consider an infinetly long hollow cylindrical wire. The wire has an outer diameter b and the clindrical hole at its center has d
Nadusha1986 [10]

Answer:

B = (μ₀*i/(2*π*x))*(x²-(a/2)²)/((b/2)²-(a/2)²)

Explanation:

Given

Outer diameter of the wire = b  ⇒ R = b/2

Diameter of the clindrical hole at the center = a  ⇒ r = a/2

The current that flows from left to right and is uniformly spread over the region between a and b = i

We apply Ampere's Law

Using the following formula for  a/2 ≤ x ≤ b/2

B = (μ₀*i/(2*π*x))*(x²-(a/2)²)/((b/2)²-(a/2)²)

6 0
2 years ago
White light can be separated into all of its component colors by
adoni [48]

Answer:

a prism?

Explanation:

triangle prism divides the light into different places and turns into colored or white light

3 0
3 years ago
Scientists can study ice cores to learn about Earth’s history. <br><br> True or False?
oksian1 [2.3K]
True   ........................
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2 years ago
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