Gravity

Gravity plays a significant role in the movement of rock fragments. Rock fragments are often transported downhill by gravity through processes like landslides, rockfalls, and creep. The weight and slope of the terrain determine the speed and distance that rock fragments can travel due to gravity.

The density of seawater increases with depth due to the increased pressure at greater depths compressing the water molecules closer together. This increased density can also be influenced by temperature and salinity variations within different layers of the ocean.

Asteroids hit the moon because the moon lacks a protective atmosphere like Earth's that can burn up or break apart incoming objects. Over time, the moon's surface has been bombarded by asteroid impacts due to the lack of atmospheric protection.

if you know the acceleration due to gravity at earth surface (g) , and want to know new value higher up, you can use this:

a= g/((d/r)^2)

a = new acceleration value (m/s)/s

g = 9.81 (m/s)/s (surface acceleration)

d = new distance from earth center

r = distance to surface from earth center

: say you wanted to know the acceleration at geo stationary orbit (which is earth radius(6 371 000 meters) + 35 786 000 meters = 42 157 000 meters

from earths center, then

a= 9.81/((42 157 000/6 371 000)^2

a= 9.81/43.785

a=0.224 (m/s)s

Yes, but not for quite the reason you might think. If Earth were the same density throughout, gravity would decrease as you moved toward the center, as more and more of Earth's mass would be above you. However, Earth's density is not uniform. Earth's core is made mostly of iron, which is much denser than the rock that makes up the crust and mantle. So gravity would increase as you got closer to the dense. Once you cross into the core, gravity starts to decrease as described above until you reach the very center, where gravity (at least from Earth) is zero.

Specific gravity of rocks is a measure of the density of a rock compared to the density of water. It is an important property in geology as it helps in identifying and classifying different types of rocks based on their specific gravity. The specific gravity of a rock can be used to infer its mineral composition and help determine its suitability for certain applications.

Fill a beaker with water, and weigh it.

Weigh a sample of the mineral. That's the mass of the mineral.

Put the sample in the beaker and weigh that.

The weight of the water-filled beaker plus the weight of the mineral sample will be greater than the weight of the beaker with mineral sample and water. The difference is the weight of the displaced water, in grams.

The volume of the mineral sample, in cubic centimeters is equal to the weight of the displaced water, in grams.

Calculate the specific gravity of the mineral by dividing the weight of the mineral sample by the volume of the mineral sample.

Example: your beaker weighs 40 grams. Filled with water, it's 1040 grams. The sample of mineral weighs 160 grams. The beaker with the sample of mineral and water weighs 1179.7 grams.

The mineral, and the beaker with water would have a combined weight of 1200 grams, but the beaker with mineral and water weighs 20.3 grams less than that, so the mineral sample is displacing 20.3 cubic centimeters of water.

Given a mass of 160 grams and a volume of 2.03 CC, the specific gravity would be found by dividing 160 by 20.3. It's 7.85. (Which happens to be the specific gravity of some iron.)

Because the value of "g" varies directly with the sum of the masses of the two bodies acted upon by the force of gravity. If you go inside the earth, only part of the mass of the earth will be attracting you toward its center; the mass of the part of the earth that is farther from the center than you are will be attracting you away from the center. If it were possible to reach the center of the earth, the value of "g" would reach zero because the mass of the earth would be acting upon equally you in all directions.

Earth's gravity is approximately 9.81 m/s^2 at the surface, which is considered the standard for measuring the gravitational force on Earth. This value can vary slightly depending on location and altitude, but the overall range is within a few percentage points of the standard value.

Earth's gravity affects all objects with mass, pulling them towards the center of the planet. This includes everything from people and animals to buildings and vehicles. The force of gravity is what keeps us anchored to the ground and determines our weight.

Earth's gravity is caused by its mass (or rather its energy). Everything that has mass will passively generate a gravitational field, even you and me! (Although we are not by far massive enough for the gravitational attraction between us to be noticeable.)

It is not caused by the Earth's magnetic field, or the Earth rotation (in fact the rotation counteracts gravity in some places).

Determine the density of the sand. Determine the mass of the sand, and it's volume. Divide the mass by the volume and that gives you density. Then divide the sand's density by the density of water. That will give you the specific gravity of the sand. Because you divide densities, the units cancel out, and specific gravity does not have any units.

For example, you determine the density of the sand to be 10g/cm3, and the density of pure water is known to be 1g/cm3. Divide 10g/cm3 by 1g/cm3. The g/cm3 cancel, and you are left with just the number 10. So in this example the specific gravity of sand is 10.

Yes, gravity can cause mechanical weathering through processes like mass wasting, where gravity causes rocks and debris to move downhill. Ice can also cause mechanical weathering through frost wedging, where repeated freezing and thawing of water in cracks and crevices causes rocks to break apart.

Gravity itself is not considered a geological process, as it is a fundamental force that exists universally. However, gravity does play a vital role in geological processes, such as erosion, landslides, and plate tectonics, by influencing the movement and behavior of materials on and within Earth's surface.

The specific gravity of talc typically ranges from 2.5 to 2.8.

38% of Earth's gravity on the surface would be approximately 3.8 m/s². Earth's gravity at the surface is about 9.81 m/s², so 38% of that is calculated by multiplying 9.81 by 0.38.

The specific gravity of quartzite typically ranges from 2.65 to 2.75.

Black holes are the cause of gravity... Black holes are created when a supernova condenses, creating a black hole. It condenses because gravity has won the battle between the star's core.

So basically, gravity fuels a Black hole.

A man cannot resist the gravitational pull of Earth, as gravity is a fundamental force of nature. Gravity is what keeps us grounded to the Earth's surface and allows objects to maintain their position in space.

Geotropism is the term that describes the root's downward growth in response to gravity. This phenomenon helps roots navigate through soil to access water and nutrients effectively.

Electromagnetic force and gravitational force are very different in a number of ways. Perhaps the most significant difference is that there are both positive and negative electrical charges, and north and south magnetic poles, whereas there is only one, positive form of gravity (if we could produce negative gravity, long dreamed of by science fiction writers, that would be tremendously useful). Electric forces interact with shielding agents (in the form of electrical conductors) and are absorbed, and do not reach the shielded interior of the room, but gravity is not absorbed in that way - it permeates everything equally. The ultimate nature of gravity is more mysterious than that of electromagnetism, and is still under debate by theoretical physicists. If it is true as suggested by Einstein that gravitational force is the result of a warping in the geometry of four dimensional space-time, you can see why it would be difficult to shield against it.

The effects are the moon phases, eclipses, and the high tide and low tide.

The specific gravity of soil is a valuable parameter for assessing soil properties like compaction and permeability. A higher specific gravity typically indicates a denser soil with better load-bearing capacity, while a lower specific gravity may suggest a more porous soil with lower strength. Overall, specific gravity measurements can help in understanding the engineering behavior and suitability of soil for different construction purposes.

On or near Earth's surface, the force of gravity on any mass is 9.8 newtons per kilogram.

The force of gravity that any mass on or near the surface exerts on the Earth is

also 9.8 newtons per kilogram.

There are no specific predictions for what will happen to Earth in 2021. However, ongoing concerns such as climate change, natural disasters, and environmental degradation will continue to impact the planet. It is important to focus on sustainability and conservation efforts to mitigate these effects.