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Svetradugi [14.3K]

3 years ago

8

An astronaut carrying a camera in space finds herselfdrifting away from a space shuttle after her tetherbecomes unfastened. If s

he has no propulsion device,what should she do to move back to the shuttle?

1 answer:

Dahasolnce [82]3 years ago

5 0

Answer:

Explanation:

According to the conservation of momentum, if she throws the camera in the opposite direction of space shuttle, she drifts towards the shuttle.

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the density of maple wood is about 755.kg/m. What is the mass of a solid piece of maple that has a volume 640.cm?

jenyasd209 [6]

I believe that the correct given values are:

density = 755 kg/m^3

volume = 640 cm^3

First let us convert volume to m^3 units.

volume = 640 cm^3 * (1 m / 100 cm)^3 = 6.4 x 10^-4 m^3

so the mass is:

mass = 755 kg/m^3 * (6.4 x 10^-4 m^3)

<span>mass = 0.4832 kg = 483.2 g</span>

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8. A 20 newton object is pulled along a surface at a constant speed of 3.0 meters per second using a force of 4.5 newtons. The k

tia_tia [17]

To calculate the kinetic coefficient of friction is closest to: 1. 0.23.

<u>Given the following data:</u>

Horizontal force = 4.5 Newton

Normal force = 20 Newton

Speed = 3.0 m/s

To calculate the kinetic coefficient of friction:

Mathematically, the kinetic force is given by this formula;

$F_k = uF_n$

<u>Where;</u>

$F_k$ represents the kinetic force.

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μ represents the kinetic coefficient of friction.

Making μ the subject of formula, we have:

$u=\frac{F_k}{F_n}$

Substituting the given parameters into the formula, we have;

$u=\frac{4.5}{20}$

u = 0.225 ≈ 0.23

Read more on kinetic coefficient of friction here: brainly.com/question/13940648

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Explanation:

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Explanation:

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