The mass of an object does not change based on its distance from the Earth's surface. Mass is a measure of the amount of matter in an object and is constant regardless of its location.
Gravity does not directly affect the mass of an object. However, gravity is responsible for the weight of an object, which is the force that acts on an object due to gravity. The weight of an object can change depending on its distance from the Earth's surface, but its mass remains the same.
An object will weigh less if it is 30M above the Earth's surface compared to when it is on the Earth's surface. This is because the force of gravity decreases as distance from the Earth's surface increases.
The mass of an object does not directly affect its weight. However, a more massive object will have a greater gravitational force acting on it, resulting in a greater weight. So, if two objects are at the same distance from the Earth's surface, the more massive one will have a greater weight.
No, the gravitational pull decreases as distance from the Earth's surface increases. This means that the gravitational pull at 30M above the Earth's surface is slightly less than the pull at the surface. However, the difference is very small and not noticeable for most objects.