Gravity

Specific gravity for minerals is the ratio of the weight of a mineral to the weight of an equal volume of water, providing a measure of the density of the mineral. It helps in identifying minerals and determining their composition, as different minerals have different specific gravities. It is a useful property for mineralogists and geologists to distinguish between minerals with similar visual characteristics.

The average strength of gravity on Earth is approximately 9.81 meters per second squared (m/s^2). This value can vary slightly depending on location due to factors such as altitude and the density of the Earth's crust.

Planets do not collide with each other because they orbit around the Sun in stable paths called orbits. These orbits are a balance between the speed of the planet and the gravitational pull of the Sun. The gravitational force between planets is not strong enough to overcome the momentum of their orbits and cause them to collide.

The unit weight of soil with a specific gravity of 2.65 is 1.8 g/cc.

The specific gravity of augite, a common mineral in the pyroxene group, ranges from approximately 3.2 to 3.6. This specific gravity measurement can help in distinguishing augite from other minerals when analyzing rock samples.

There are three main types of gravity anomalies: positive anomalies, negative anomalies, and neutral anomalies. Positive anomalies indicate higher-than-normal gravity readings, while negative anomalies indicate lower-than-normal readings. Neutral anomalies show no deviation from the expected gravity level. These anomalies are typically measured in microgal units.

Earth's gravity is consistent and unchanging at approximately 9.81 m/s². This gravitational force is responsible for keeping objects anchored to the Earth's surface and determining their weight.

Everything with mass has a center of gravity although in an atomic scale these numbers are very small and in newtons laws state all things with mass put forces on anything else with mass so it might not be possible to balance an atom on top of another atom but everything has a center of gravity that has mass or weight no matter how big or small

Gravity erodes a landform by pulling sediments or rocks downward, causing them to move. This movement, known as mass wasting, can lead to erosion through processes like landslides, rockfalls, and creep. Over time, gravity works to reshape and wear down the landform by carrying particles downhill.

Mercury has the smallest mass of the 8 planets at 5.5% of the mass of the Earth. It therefore has the least gravity of all the planets.

Back when Pluto was still listed as a planet it was considered to have the weakest gravity of all the solar system's planets. Now that Pluto has been demoted from planetary status, the planet with the weakest surface gravity is Mercury. While Pluto's gravity is weaker than that of any planet in the solar system, there are still many non-plantery objects with weaker surface gravity.

A region in space that exerts a gravitational pull on all matter and light around it is a black hole. Black holes are extremely dense objects with gravity so strong that not even light can escape its pull, leading to their characteristic feature of being invisible, hence the name "black hole."

The gravity of Mars is about 38% of that on Earth. This means that if you were on Mars, you would weigh less than on Earth because gravity is weaker. However, the gravity of Mars has minimal direct effect on Earth as they are separate celestial bodies with their own gravitational fields.

The specific gravity of iron ore fines at 4.5 indicates that it is denser than water, which has a specific gravity of 1. This means that iron ore fines would sink in water. Specific gravity is a measure of density relative to the density of water, so a higher value indicates a denser material.

All black holes are theorized to have a singularity at their center, characterized by infinite density and gravitational pull. However, the exact nature of the singularity is still a topic of debate among physicists, as it involves the intersection of general relativity and quantum mechanics, which are not yet fully reconciled theories.

No, a planet does not collapse because gravity isn't strong enough to provide enough pressure to crush a planet.

You might make a planet heavier and heavier as to increase its gravity but at some point the pressure in the planet's core will be high enough to support nuclear fusion and the planet will have changed into a star. At that point radiative pressure also begins to fight gravity.

Approximately 6% of Earth's surface is covered by rainforests, which are found mainly near the equator in regions such as South America, Central Africa, and Southeast Asia. These rainforests play a crucial role in supporting biodiversity and regulating the global climate.

Mars has weaker gravity than Earth. The gravity on Mars is about 38% of the gravity on Earth. This means that objects on Mars weigh less than they would on Earth.

An object on the surface of Mars weighs about 37% of

its weight on the surface of earth.

The value of gravity depends on the mass of the Earth and the distance from the center of the Earth. Gravity is weaker at higher altitudes because you are farther from the Earth's center, and it is stronger at higher latitudes near the poles due to the oblong shape of the Earth.

Gravity erosion is the process by which materials are slowly moved downslope due to the force of gravity. This type of erosion is common in hilly or mountainous areas where gravity causes rocks, soil, and other materials to gradually shift and wear away over time. It can result in landslides, rockfalls, and other forms of mass wasting.

Earth is more massive than Mars and therefore has greater gravity.

Apollo 8 is not orbiting the moon - it completed 10 lunar orbits during its mission in December 1968. The spacecraft's velocity and direction are precisely calculated and adjusted with thruster burns to maintain its trajectory around the moon.

We can do a quick calculation using Newtonian gravity (which is sufficient here since we are far away from the black hole). We do need some data:

-The distance between the Sun and the centre of our Galaxy is 2.5 x 10^20 meters. Since the distance between the Earth and Sun is completely negligible at this scale we can use this as the distance between the Earth and the black hole.

-The mass of the Earth is about 6 x 10^24 kilograms.

-The mass of the central black hole is about 8 x 10^36 kilograms.

We can now use the following formula:

F = G * m_earth * m_black_hole / distance^2

Where G is some constant named the gravitational constant. If we use this formula we arise at a force of about 7.7 x 10^20 Newtons. This is the force the black hole exerts on the Earth, and it is also the force the Earth exerts on the black hole.

The gravitational pull of a brown dwarf system would be weaker than that of a star system but stronger than that of a planet. It is sufficient to keep the system objects in orbit around the brown dwarf.