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What is the value of null point where the value of gravitational force of earth equals the gravitational force of moon?
Wiki User
∙ 10y ago
It is approximatly 3.42*10^8 M away from the centre of mass of the earth
Wiki User
∙ 10y ago
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Is there a point between the moon and the earth where the gravitational force acting on a spaceship is zero?
.
What would be the gravitational force on you if you were at a point in space a distance R the Earth's radius above the Earth's surface?
one-fourth of your weight on earth
Does the gravitational force of attraction of the earth become zero at some measurable height above the surface of earth?
No. The gravitational force of the earth can be effectively cancelled out by some object, such as the moon, which pulls in the opposite direction, but it does not go to zero just because of the distance at any point.
How much mass does a celestial object have to have to exert gravitational force?
There is no minimum mass at which point an object (celestial or otherwise) begins to have a gravitational force. Any object with mass has an associated gravitational force. The magnitude of that force is proportional to to the mass of the object - lots of mass results in lots of gravitational force; little masses result in only little gravitational force.
Find the direction of the net gravitational force exerted on the spacecraft by the earth and moon?
It is very easy to find the direction of net force exerted by Earth and Moon on a Space craft. Suppose Earth is at "0" point of 3-D coordinate system. Now say X1, Y1, Z1 are the coordinate of the Moon and X2, Y2, Z2 are the coordinates of Space craft. Now say M1, M2, and M3 are the mass of Earth, Moon and Space Craft respectively. Now calculate the gravitational force exerted by Earth and Moon separately in X,Y,Z directions. Now Vectorial SUM of the above force is the net force and resultant vector is the direction of net Gravitational force on the Space craft.
Is there a point between the moon and the earth where the gravitational force acting on a spaceship is zero?
.
What would be the gravitational force on you if you were at a point in space a distance R the Earth's radius above the Earth's surface?
one-fourth of your weight on earth
Does the gravitational force of attraction of the earth become zero at some measurable height above the surface of earth?
No. The gravitational force of the earth can be effectively cancelled out by some object, such as the moon, which pulls in the opposite direction, but it does not go to zero just because of the distance at any point.
What is the law of gravitational potential energy?
Gravitational energy is the potential energy associated with gravitational force. If an object falls from one point to another point inside a gravitational field, the force of gravity will do positive work on the object, and the gravitational potential energy will decrease by the same amount.
How much mass does a celestial object have to have to exert gravitational force?
There is no minimum mass at which point an object (celestial or otherwise) begins to have a gravitational force. Any object with mass has an associated gravitational force. The magnitude of that force is proportional to to the mass of the object - lots of mass results in lots of gravitational force; little masses result in only little gravitational force.
Dimensional formula for gravity g?
gravitational potential means apply force on a object of mass m and opposite to the gravitational force and take the object to one point to another point. gravatiotanal potential = L-1
When you moves from surface of earth towards moon gravity increases or decreases?
When you moves straight from the surface of the Earth toward the moon, the force of gravity attracting you to the Earth decreases, and the force of gravity attracting you to the moon increases. The Earth's gravity is the stronger one until you're about 73% of the way to the moon, and from there the moon's gravity is stronger. So, from the time you leave the Earth, the net gravitational force on you decreases, and becomes zero when you have completed about 73% of the trip. From that point until you reach the moon, the gravitational force increases again, and when you reach the moon, the force on you is about 1/6 as strong as it was on the Earth, but pulling towards the Moon.
Find the direction of the net gravitational force exerted on the spacecraft by the earth and moon?
It is very easy to find the direction of net force exerted by Earth and Moon on a Space craft. Suppose Earth is at "0" point of 3-D coordinate system. Now say X1, Y1, Z1 are the coordinate of the Moon and X2, Y2, Z2 are the coordinates of Space craft. Now say M1, M2, and M3 are the mass of Earth, Moon and Space Craft respectively. Now calculate the gravitational force exerted by Earth and Moon separately in X,Y,Z directions. Now Vectorial SUM of the above force is the net force and resultant vector is the direction of net Gravitational force on the Space craft.
Why is the earths orbital velocity fastest at perihelion?
the suns gravitational pull is strongest because the earth is at its closest point to the sun.
Why won't a helicopter that hovers for 12hrs end up on the other side of the earth when it lands 12hrs later?
The helicopter that is hovering over a place on the earth is n bound to the earth by the gravitational force of the earth. This gravitational attractive force on the helicopter is directed towards the center of the earth. As the earth rotates around itself the helicopter is pulled along with it. So the point directly below the earth's surface does not get displaced. Thus the helicopter cannot move away from the spot. For the helicopter to get itself free from the gravitational pull of the earth it has to be lifted to a height of millions of kilometers, where it cannot hover because a helicopter requires the presence of air to hover.
How is mass and distance related to the strength of gravitational force?
The gravitation attraction force between two point masses is directly proportional to the product of their masses and inversely proportional to the square of their separation distance.
Where is its gravitational potential energy minimum?
The answer depends on what "it" is and the overall context. The answer could be the centre of the earth where the earth's gravity has no effect, or the Lagrange point where the gravitational forces of the moon, earth and sun balance each other.
