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Imagine two pairs of gloves.

In the first pair, two gloves of masses [tex]\(m_1\)[/tex] and [tex]\(m_2\)[/tex] are separated by a distance [tex]\(r\)[/tex], resulting in a gravitational force [tex]\(F_1\)[/tex].

In the second pair, two gloves of masses [tex]\(2m_1\)[/tex] and [tex]\(2m_2\)[/tex] are separated by a distance [tex]\(2r\)[/tex], resulting in a gravitational force [tex]\(F_2\)[/tex].

The relationship between these two forces can be written as [tex]\(F_2 = n F_1\)[/tex].

What is the value of [tex]\(n\)[/tex]?


Sagot :

To solve this problem, let's use the formula for gravitational force between two masses, which is given by:

[tex]\[ F = G \frac{m_1 m_2}{r^2} \][/tex]

where [tex]\( G \)[/tex] is the gravitational constant, [tex]\( m_1 \)[/tex] and [tex]\( m_2 \)[/tex] are the masses of the two objects, and [tex]\( r \)[/tex] is the distance between them.

### For the first pair of gloves:
The masses are [tex]\( m_1 \)[/tex] and [tex]\( m_2 \)[/tex], and the distance between them is [tex]\( r \)[/tex]. The gravitational force [tex]\( F_1 \)[/tex] can be expressed as:

[tex]\[ F_1 = G \frac{m_1 m_2}{r^2} \][/tex]

### For the second pair of gloves:
The masses are doubled, so they are [tex]\( 2m_1 \)[/tex] and [tex]\( 2m_2 \)[/tex], and the distance between them is also doubled to [tex]\( 2r \)[/tex]. The gravitational force [tex]\( F_2 \)[/tex] can be expressed as:

[tex]\[ F_2 = G \frac{(2m_1)(2m_2)}{(2r)^2} \][/tex]

Simplify the expression for [tex]\( F_2 \)[/tex]:

[tex]\[ F_2 = G \frac{4m_1 m_2}{4r^2} \][/tex]

Notice that the factor of 4 in the numerator and the denominator cancel each other out:

[tex]\[ F_2 = G \frac{m_1 m_2}{r^2} \][/tex]

Hence, we see that:

[tex]\[ F_2 = F_1 \][/tex]

This means:

[tex]\[ F_2 = 1 \cdot F_1 \][/tex]

Therefore, the value of [tex]\( n \)[/tex] is:

[tex]\[ n = 1 \][/tex]
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