gravity
Luna, the Earth's moon, has no atmosphere at all. Its force of gravity is too small to hold an atmosphere to its surface.
Earth holds its atmosphere due to the force of gravity. Gravity pulls the gases of the atmosphere towards the surface of the Earth, preventing them from escaping into space. The Earth's gravity is strong enough to hold gases like nitrogen, oxygen, carbon dioxide, and others close to its surface.
The force that helps you hold things to a fridge door is magnetism. Magnets have an attraction to certain metals, such as iron, which allows them to stick to the metal surface of the fridge door. This force is what keeps items like magnets, notes, or pictures in place on the fridge door.
Please take a look around you, and do some experimenting. If you hold an object in your hand and let it go, will it normally fall up, or down? The answer is down. gravity pulls you down. THERYAGO.
The force that helps hold things to fridge doors is magnetism. Magnets on the fridge door create a magnetic field that attracts ferromagnetic materials like iron or steel, allowing items like magnets, notes, or photos to stick to the surface.
The force needed to hold a 2 kg object would be equal to the force of gravity acting on the object at that particular location. This force is typically calculated using the formula: Force = mass x acceleration due to gravity, which is approximately 9.81 m/s^2 on the surface of Earth.
Earth has gravity which creates a gravitational pull, allowing it to hold water on its surface. The force of gravity is strong enough to keep water molecules from floating off into space, ensuring that water remains on Earth's surface. Additionally, the planet's atmosphere helps maintain suitable conditions for water to exist in its liquid form.
electromagnetic force - specifically magnetic
Is`s called magnetism.
buoyancy
Gravitation.
surface tension.