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3 years ago

Read this quotation:

Physics

2 answers:

Brums [2.3K]3 years ago

4 0

Answer:

the Princess in "St. George and the Dragon"

ahrayia [7]3 years ago

3 0

Answer:

The princess in st. George and the dragon

Explanation:

Have a good day

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Which area of Earth is most similar to the sun’s convection zone?

Pavlova-9 [17]

I would say the correct answer is the third option. The area of the Earth that is most similar to the Sun's convection zone would be the mantle. The convection zone of the sun is its outermost layer where heat transfer by convection happens which is similar to the Earth's mantle.

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3 years ago

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Identify a mixture that you have personally seen in the last 2 weeks. What are the components of this mixture?

Sever21 [200]

Mixture: Sweet Tea
The components of the sweet tea are as follows: tea and sugar. This is a mixture because the sugar dissolved into the creating a mix of the two thus creating a mixture.

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3 years ago

(II) How much work did the movers do (horizontally) pushing a 46.0-kg crate 10.3 m across a rough floor without acceleration, if

Gwar [14]

Answer:

2324 J

Explanation:

The formula for work is:

$W=F*d$

where $F$ is the force applied, and $d$ is the distance moved, in this case $d=10.3m$

and we need to find $F.$

Since the crate is not moving up or down, we conclude that the <u>normal force must be equal to the weight </u>of the object:

$N=w$

where $N$ is the normal force and $w$ is the weight, which is: $w=mg$ , where g is the gravitational acceleration $g=9,81m/s^2$ and $m$ is the mass $m=46kg$ .

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Thus the normal force is:

$N=mg$

Now, the force due to the friction is defined as:

$f=\mu N=\mu mg$

where $\mu$ is the coefficient of friction, $\mu =0.5$

So, for the crate to move, the force applied must be equal to the frictional force:

$F=f\\F=\mu mg$

And now that we know the force we can calculate the work:

$W=F*d\\W=\mu mg*d$

substituting known values:

$W=(0.5)(46kg)(9.81m/s^2)(10.3)\\W=2324J$

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All atomic nuclei except those of ordinary hydrogen contain neutrons<br> true or false

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The answer to this question is False

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3 years ago

A positive rod is placed to the left of sphere A ,and the spheres are separated

Romashka [77]

When a positive rod is placed to the right of sphere B, and the spheres are separated, the reason behind this is the same charge on the sphere as the rod i.e. the right of the sphere also had a positive charge. Thus, the same positive charges could not reside on the right side surface of the sphere due to which it separation happens.

Read more on Brainly.com - brainly.com/question/4135790#readmore

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