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Mrrafil [7]
3 years ago
5

Which planet is smaller than Earth’s core?

Physics
2 answers:
makvit [3.9K]3 years ago
7 0

Answer:

The answer <em><u>is C. Mars</u></em>. Mars and Mercury are both smaller than Earth's core. Hope this helps you :)

worty [1.4K]3 years ago
4 0

Answer:

C. Mars

Explanation:

Size of a planetary object depends on when it forms and where it forms.

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Newton discovered that sunlight was composed of colors.<br><br><br> True or False
KonstantinChe [14]

Answer:

True

Newton's Rainbow. In the 1660s, English physicist and mathematician Isaac Newton began a series of experiments with sunlight and prisms. He demonstrated that clear white light was composed of seven visible colors.

Explanation:

Hope it helps

5 0
3 years ago
An astrophysicist mounts two thin lenses along a single optical axis (the lenses are at right angles to the line connecting them
Alexandra [31]

Answer:

1 / i + 1 / o = 1 / f     thin lens equations

i = o f / (o - f)   rearranging

Lens 1:   object = 30 cm    f = 15.2 cm

i1 = 30 * 15.2 / (30 - 15.2) = 30.8 cm

o2 = 40.2 - 30/8 = 9.4 cm    distance of image 1 from lens 2

i2 = 9.4 * 15.2 / (9.4 - 15.2) = - 24.6 cm

The final image is 24.6 cm to the left of lens 2

The first image is inverted

The second image is erect (as seen from the first image)

So the final image is inverted

M = m1 * m2 = (-30.8 / 30) * (24.6 / 9.4) = -2.69

7 0
3 years ago
If a swimmer pushes off a pool wall with a force of 250n, what is her acceleration.
grigory [225]

Her acceleration is

           (250) divided by (the swimmer's mass, in kilograms).

The unit is " meters per second² " .

3 0
3 years ago
At a certain instant, a particle is moving in the direction with momentum 18 kg·m/s. During the next 0.5 s, a constant force &lt
sukhopar [10]

Answer:

24.325 kg m/s

Explanation:

Initial momentum, pi = 18 kg m/s

F = < -4, 12, 0>

t = 0.5 s

Let the final momentum is pf.

The magnitude of force is

F=\sqrt{(-4)^{2}+12^{2}+0^{2}}=12.65 N

According to the Newton's second law, the rate of change of momentum is equal to the force.

F = \frac{p_{f}-p_{1}}{t}

12.65= \frac{p_{f}-18}}{0.5}

pf - 18 = 6.325

pf = 24.325 kg m/s

Thus, the momentum of body after 0.5 s is 24.325 kg m/s.

6 0
4 years ago
How does the changing the distance between the objects affect the force between them
oksano4ka [1.4K]
The farther the distance, the weaker the gravitational force
4 0
4 years ago
Read 2 more answers
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