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Ede4ka [16]
3 years ago
11

The force "F" applied on a spring and its extension "x" is given by the relation F = - k*x where "k" is the constant of proporti

onality.
Find "k" if a force of 10 Newtons produces an extension of 5 cm.

A. - 50 N/cm
B. 0.5 N/cm
C. - 20 N/cm
D. - 2 N/cm

HELP
Mathematics
2 answers:
mihalych1998 [28]3 years ago
8 0

Answer: the answer would be 17, hope that helps

Step-by-step explanation:

yuradex [85]3 years ago
5 0

Answer:

F = -k × X

10 Newtons = -k × 5 cm -k = 10 N/5 cm

-k = 2N/cm

k = -2N/cm

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Licemer1 [7]

Answer:

1000 m³

Step-by-step explanation:

The base of a cube is just a square.

The area of a square is l^2, where l is the length.

Since we know the area of the base (the square) we can find l easily.

l^2 = 100\\\\l = \sqrt{100}\\\\l=10

Now that we know the length of the sides, we have to take note that a cube has side lengths that are all congruent.

This means the height of the cube is also 10m.

Since the volume of a cube is represented as l^3, where l is the length, we can substitute 10 in as l to find it's total volume.

10^3 = 1000

So the volume of this cube is 1000 m³.

Hope this helped!

8 0
4 years ago
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Answer:

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Step-by-step explanation:

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7 0
3 years ago
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AlladinOne [14]

Answer:

1. 60% (decrease by 40%)

3. 30% (decrease by 70%)

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7. 40% (Decrease by 60%)

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Step-by-step explanation:

1. 20x = 11 = 0.55 rounds to 0.6 => 60%

3. 56 x = 14 = 0.25 rounds to 0.3 => 30%

5. 18x  = 45 = 2.5 => 250%

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8 0
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Mademuasel [1]

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7 0
4 years ago
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swat32

Answer:

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Step-by-step explanation:

\left(x^{2-8}\right)+\left(-2x^2\right)

=x^{2-8}-2x^2

=x^{-6}-2x^2

=\frac{1}{x^6}-2x^2

5 0
3 years ago
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