Why can a geo-stationary satellite monitor the movement of clouds accurately?
Because it is stationary relative to any place on Earth.
A geo-stationary satellite orbits the Earth in the equatorial plane with an orbital period equal to Earth's rotation period of about 24 hours.
Because it revolves in the same direction and at the same rate as the Earth spins, it stays fixed above the same point on the surface.
From the ground it therefore appears stationary, always overlooking the same region.
This constant view lets it continuously track changes such as the movement and development of clouds over that region.
Hence a geo-stationary satellite works well because it is stationary relative to any place on Earth.
An object weighs 18 N when measured on the surface of the earth. What would be its weight when measured on the surface of the moon?
Which one of the following statement is true for the relation, \(F= \frac{{G{m_1}{m_2}}}{{{r^2}}}\) ?
(All symbols have their usual meanings)Suppose there are two planets, 1 and 2, having the same density but their radii are R 1and R 2respectively, where R 1> R 2. The accelerations due to gravity on the surface of these planets are related as
LIGO stands for
If radius of the earth were to shrink by 1%, its mass remains the same, g would decrease by nearly
The radius of the Moon is about one-fourth that of the Earth and acceleration due to gravity on the moon is about one-sixth that on the earth. From this, we can conclude that the ratio of the mass of earth to the mass of the moon is about