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3 years ago

7

When a certain constant force acts upon an object with mass 25kg, the acceleration of the object is 3 m/s2. When the same force

acts upon another object, it’s acceleration is 5 m/s2. What is the mass of this object

1 answer:

siniylev [52]3 years ago

8 0

Answer:

15kg

Explanation:

look at the beautiful pictures, if have any questions, il answer

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Option C

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4 years ago

Calculate the eccentricity of an ellipse. The distance between the foci is 5.2 and the length of the major axis is 20.6.Round of

Dominik [7]

Answer:

The eccentricity of the ellipse is 0.252.

Explanation:

The eccentricity of an ellipse ( $c$ ), dimensionless, can be determined by means of the following expression:

$e = \frac{\bar c}{\bar a}$ (1)

Where:

$\bar c$ - Distance between the foci, dimensionless.

$\bar a$ - Length of the major axis, dimensionless.

If we know that $\bar c = 5.2$ and $\bar a = 20.6$ , then the eccentricity of the ellipse is:

$e = \frac{5.2}{20.6}$

$e = 0.252$

The eccentricity of the ellipse is 0.252.

8 0

3 years ago