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3 years ago

What do earths system include

Physics

1 answer:

taurus [48]3 years ago

6 0

Answer:

The Atmosphere.

Explanation:

The Atmosphere contains all of the planets air, And without air we can't breathe so I think this would be a good answer for you to choose, have a nice day

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Two like-charged particles are placed close to each other. How would the force of repulsion be affected if the charge on one of

astra-53 [7]

Answer: It will remain the same

Explanation:

According to Coulomb's Law:

"The electrostatic force $F_{E}$ between two point charges $q_{1}$ and $q_{2}$ is proportional to the product of the charges and inversely proportional to the square of the distance $d$ that separates them, and has the direction of the line that joins them".

Mathematically this law is written as:

$F_{E}=K\frac{q_{1}.q_{2}}{d^{2}}$ (1)

Where:

$F_{E}$ is the electrostatic force

$K$ is the Coulomb's constant

$q_{1}=q_{2}=q$ are the electric charges , which in this case have the same positive charge

$d$ is the separation distance between the charges

Rewritting we have:

$F_{E}=K\frac{q^{2}}{d^{2}}$ (2)

Now, if the first charge is doubled:

$q_{1}=2q_$

And the second is reduced to a half:

$q_{2}=\frac{1}{2}q$

We will have the following:

$F_{E}=K\frac{(2q)(\frac{1}{2}q)}{d^{2}}$ (3)

$F_{E}=K\frac{q^{2}}{d^{2}}$ (4)

As we can see equation (4) is equal to equation (2), this means the force of repulsion between both charges will remain the same

8 0

3 years ago

Read 2 more answers

The fall of a body on the earth's surface cannot be a complete free fall why ?

leonid [27]

Explanation:

because the boy has larger surface area due to which he offers the larger air resistance which decreases the acceleration so, he will fall towards the earth's surface approximately with constant velocity.

3 0

3 years ago

Which of these is not an example of work? A. Lifting a bag B. Holding a heavy weight C. Pushing a door open D. Kicking a ball

Oksanka [162]

B. Holding a heavy weight

4 0

3 years ago

In an element's square on the periodic table, the number with the greatest numerical value represents the

Irina-Kira [14]

Answer: Atomic mass

Explanation:

I took the test!

your welcome

8 0

3 years ago

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An element is highly conductive, highly reactive, soft, and lustrous. The element most likely belongs to which group?(1 point)

UkoKoshka [18]

An element which is highly conductive, highly reactive, soft, and lustrous is most likely an alkali metal.

Alkali metals are in group 1 of the Periodic table which means that they have only a single valence electron.

This causes them to be soft and highly reactive because:

The single valance electron leads to weak bonds amongst the element's atoms which makes them soft
The elements want to lose the single valance electron so as to become stable so they will react with other elements to give away the electron.

Examples of alkali electrons include:

Lithium
Sodium
Potassium etc

In conclusion therefore, alkali metals are highly reactive and soft and so the element described above is most likely an alkali metal.

Find out more at brainly.com/question/18722874.

6 0

2 years ago

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