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ludmilkaskok [199]
3 years ago
13

State the fundamental law of electrostatics​

Physics
1 answer:
Nesterboy [21]3 years ago
6 0

Answer:

According to this law, the force exerted between two point charges

i) is directly proportional to the product of their strengths.

ii) is inversely proportional to the square of the distance between them. and

iii) is inversely proportional to the absolute permittivity of the surrounding medium.

This is known as Coulomb's Law.

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A planet is discovered orbiting around a star in the galaxy Andromeda at four times the distance from the star as Earth is from
Dmitriy789 [7]

Answer:

Tp/Te = 2

Therefore, the orbital period of the planet is twice that of the earth's orbital period.

Explanation:

The orbital period of a planet around a star can be expressed mathematically as;

T = 2π√(r^3)/(Gm)

Where;

r = radius of orbit

G = gravitational constant

m = mass of the star

Given;

Let R represent radius of earth orbit and r the radius of planet orbit,

Let M represent the mass of sun and m the mass of the star.

r = 4R

m = 16M

For earth;

Te = 2π√(R^3)/(GM)

For planet;

Tp = 2π√(r^3)/(Gm)

Substituting the given values;

Tp = 2π√((4R)^3)/(16GM) = 2π√(64R^3)/(16GM)

Tp = 2π√(4R^3)/(GM)

Tp = 2 × 2π√(R^3)/(GM)

So,

Tp/Te = (2 × 2π√(R^3)/(GM))/( 2π√(R^3)/(GM))

Tp/Te = 2

Therefore, the orbital period of the planet is twice that of the earth's orbital period.

5 0
2 years ago
Read 2 more answers
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sergij07 [2.7K]

Answer:

D

Explanation:

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In 10 seconds a car accelerates 4m/s^2 to 50
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Answer:

10m/s

Explanation:

using the formula a=v-u

t

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If the north pole of a magnet in a compass is attracted to Earth's geographic north, what must be the polarity of Earth's magnet
nikitadnepr [17]
B south because north polarities line up with the opposite polarities
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Use the illustration to answer the question :)
Naily [24]

Answer:

This type of heat transfer occurs inside materials, typically solid materials. The heat from the fire is passed from molecule to molecule along the length of the material. The fire will generally follow the heat or sometimes the heat from conduction may cause a new fire to ignite elsewhere. The conduction is happening in the walls of the fireplace

Explanation:

SKATE OR DIE> LOSER

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2 years ago
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