Auroras are frequently seen : B. After solar flares
The Aurora is created by an ongoing influx of particles into the Earth's existing magnetic field,
This particles originated from the Sun as part of Solar wind
hope this helps
The gravitational force is s type of force that has the ability to attract any two objects having mass. The gravitational force will be
.
<h3>What is the
gravitational force?</h3>
The gravitational force is s type of force that has the ability to attract any two objects with mass. Gravitational force tries to pull two masses towards each other.

Given,
mass of the sun (
)=
kg
mass of Jupiter(
)=
kg
distance between the sun and Jupiter (r)=
m

Newton
Hence the gravitational force between the sun and Jupiter will be 
To learn more about gravitational force refer to the link:
brainly.com/question/24783651
Answer:

Explanation:
initially the merry go round is at rest
after 6.73 s the merry go round will accelerates to 20 rpm
so final angular speed is given as



so final tangential speed is given as


now average acceleration of the girl is given as



Answer:
Scientists have studied eclipses since ancient times. Aristotle observed that the Earth's shadow has a circular shape as it moves across the moon. He posited that this must mean the Earth was round. Another Greek astronomer named Aristarchus used a lunar eclipse to estimate the distance of the Moon and Sun from Earth