Find the gravitational field at height from the surface of a planet
Question: Find the magnitude of the gravitational acceleration near the surface of a planet of radius \(R\) at height, \(h\) […]
Tag: gravity
The tidal force that the Moon causes on the Earth’s ocean
Question: The gravitational force between the moon and Earth creates a tidal force. From the figure, \(a\) is the distance […]
Find the gravitational field of a hollow sphere
Question: A hollow sphere has region \(a<r<b\) filled with mass of uniform density \(\rho\). Find the magnitude of the gravitational […]
Some specific gravitational potential energy and its force
Question: Newtonian theory of gravity can be modified at short range. Such potential energy between two objects is given as […]
Gravity and attractive force
What we feel on the earth is the composition of the gravitational acceleration and centrifugal action of earth’s rotation. The […]