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frutty [35]
3 years ago
9

A(n) __________ is a gravitationally curved path that a celestial body travels around a point in space. A(n) __________ is a gra

vitationally curved path that a celestial body travels around a point in space. retrograde motion small circle epicycle planet orbit
Physics
1 answer:
joja [24]3 years ago
5 0

Answer: A planet orbit is a gravitationally curved path that a celestial body travels around a point in space.

Explanation:

We define planet orbit as the path that a planet (or any other celestial object) has around two focal points (the orbit is an ellipse, the ellipses have two focal points). For example, the moon's orbit is around the Earth is almost circular, while Earth orbit is less circular. This movement is caused by the strong gravitational attraction of the sun, that keeps all the planets fixed in the orbits, this is why this is called a "gravitationally curved path".

the correct option is planet orbit.

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What holds the moon in place, orbiting around the Earth
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4 0
3 years ago
A 25 kg child stands 2.5 m from the center of a frictionless merry‐go‐round, which has a 200 kg*m^2 moment of inertia and is spi
vodka [1.7K]

Answer:

Explanation:

a ) Time period  T = 2 s

Angular velocity ω = 2π / T

=  2π / 2 = 3.14 rad /s

Initial moment of inertia I₁ = 200 + mr²

= 200 + 25 x 2.5²

=356.25

Final moment of inertia

I₂ = 200 + 25 X 1.5 X 1.5

= 256.25

b ) We apply law of conservation of momentum

I₁ X ω₁ =  I₂ X ω₂

ω₂ = I₁ X ω₁ / I₂

Putting the values

w_2=\frac{356.25\times3.14}{256.25}

ω₂ = 4.365 rad s⁻¹

c ) Increase in rotational kinetic energy

=1/2 I₂ X ω₂² -  1/2 I₁ X ω₁²

.5 X 256.25 X 4.365² - .5 X 356.25 X 3.14²

= 684.95 J

This energy comes from work done against the centripetal pseudo -force.

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3 years ago
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Taden has found a table of the atmospheric layers of the Sun. However, he can’t make out the names of the layers in the chart.
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7 0
3 years ago
Read 2 more answers
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