Gravity

Yes, that's right.

Except instead of calling it "the amount of gravity", it should really be "the force of gravity".

In both cases, the force is 9.8 newtons, which is about the same as 2.2 pounds.

The specific gravity of pure water is 1.0000 at 4 °C and 1 bar. Deviations from this will change the specific gravity.

At 0°C and 1 bar, liquid water has a specific gravity of 0.9999 (one of the only substances to EXPAND as it approaches its freezing point).

At 100 °C and 1 bar, the specific gravity of liquid water is 0.9584.

At 0 °C and 150 bar, liquid water has a specific gravity of about 1.007.

doesnt matter what time it is. gravity always has the same force over you unless your on a different planet.

No, there is no such thing as an anti-gravity room. Gravity is a fundamental force of nature that cannot be eliminated in a confined space. Efforts to create weightlessness for research or entertainment purposes are typically achieved through methods like parabolic flights or using specialized equipment in space.

Nothing. A mass represents the totall inertia of a certain object, which is dependant on the amount of matter and energy that constitutes such object. Gravity has nothing to do with mass. However, weight is dependant on gravity. weight is a force, force= mass x acceleration. When we talk about weight, the gravitational force affecting a certain object, we mean mass x gravitational acceleration (g) so weight = mass x g.

This is a fantastic answer that most don't commonly think about. Let's assume that everything about the earth that we know today remained the same, except its gravitational pull. And let's say that earth suddenly LOST its gravitational pull. This means that you have no weight. So, let's say that you decided to go for a dive in your swimming pool and you jump off the diving board. Instead of falling into the water for a fun splash, you'd go flying into the sky and you would never come back. Scary thought, isn't it? In fact, it gets much, much worse. Not only would you go flying off to Neverland, but the moon would likely fling out of its orbit around our planet. This would probably pull a huge tidal wave up and over the world. And since water binds to itself, the world ocean would probably follow, blocking out the sun, and either causing us to boil or freeze (I don't know). But that's a very unlikely scenario. Now let's assume that earth originally formed without any gravity and somehow life was still possible. We'd be much different as a species. In fact, we would understand physics from a MUCH different perspective because part of our lives requires that we have gravity. Now just for a little fun, have you seen the movie "WALL-E"? I want you to go and watch that (It'll be fun and you'll learn a little something). In this movie, the effects of low gravity on the human body are partially explained (Just have to pay attention). If you have already seen it, I'll explain it further. Gravity not only keeps us on the ground where we're nice and safe, but it keeps us from growing too stretched. Now imagine without gravity. Over time, we'd experience muscle deterioration and other physical ailments. BTW, did you know that a pioneer in the area of physics and gravity was Isaac Newton? ~Apple Juice
If there were no gravity, everything would be floating, because gravity is everywhere.

Waterwheels, hydroelectric power plants, and falling weights are some examples of devices or systems that can be powered by gravity. Gravitational energy is harnessed to generate electricity or perform mechanical work in these cases.

Black hole: An extremely dense object in space that has such a strong gravitational pull that even light cannot escape from it. Its immense size attracts other objects nearby, causing them to orbit around it or eventually be pulled into it.

Yes. Gravity is proportional to the product of the two masses, and inversely proportional to the square of the distance. For example, if you increase the mass of one of the objects by a factor of 10 (without changing the other parameters), the force of attraction will also increase by a factor of 10.

Yes. Gravity is proportional to the product of the two masses, and inversely proportional to the square of the distance. For example, if you increase the mass of one of the objects by a factor of 10 (without changing the other parameters), the force of attraction will also increase by a factor of 10.

Yes. Gravity is proportional to the product of the two masses, and inversely proportional to the square of the distance. For example, if you increase the mass of one of the objects by a factor of 10 (without changing the other parameters), the force of attraction will also increase by a factor of 10.

Yes. Gravity is proportional to the product of the two masses, and inversely proportional to the square of the distance. For example, if you increase the mass of one of the objects by a factor of 10 (without changing the other parameters), the force of attraction will also increase by a factor of 10.

The force of gravity (or acceleration) affects weight but not mass. An object's mass does not change - it is the physical composition of the object. Weight increases as the force of gravity increases and decreases in the same way.

To calculate gravity at any altitude, you can use the formula: gravity at altitude = acceleration due to gravity at sea level * (1 - 2 * altitude / Earth's radius)^2. The acceleration due to gravity at sea level is approximately 9.81 m/s^2, and Earth's radius is roughly 6,371 km. Substituting these values will give you gravity at your desired altitude.

Energy from gravity refers to the potential energy stored in an object when it is elevated above the ground. This energy can be converted into kinetic energy when the object falls due to gravity, such as in a waterfall or a rollercoaster ride. The amount of energy depends on the object's mass, height, and gravitational force.

If particles were to stop moving completely, all processes that depend on particle motion and interaction, such as chemical reactions, heat transfer, and electrical conductivity, would cease. This would result in a state of absolute zero temperature, where all molecular motion stops.

Usually I have seen the letter "a" for that purpose.

Usually I have seen the letter "a" for that purpose.

Usually I have seen the letter "a" for that purpose.

Usually I have seen the letter "a" for that purpose.

False. A meteor is a small rocky or metallic body that enters a planet's atmosphere and burns up, creating a streak of light in the sky. It comes from a meteoroid, which is a smaller fragment of an asteroid or comet that has entered the Earth's atmosphere.

If the earth had a completely smooth surface and all the components form which it was made were all evenly mixed up, then the force of gravity would be the same at all points on its surface.

However the earth is not smooth , it has mountains and hollows in its surface and the rocks form which it is made are not evenly mixed, some surface rocks are heavy (dense) and some are light.

This means that as compared to the theoretical smooth earth gravity field, the real earth gravity field varies from point to point over the surface.

A gravity survey measures the small variations in the pull of gravity over the earth's surface and makes a map of these changes. This map helps geologists understand where the dense and light rocks are beneath the surface.

One difference is that gravity acts at a distance - the objects need not touch. Another difference is that every object attracts every other object. The force depends on the masses and on the distance.

Exactly as it appears in your question.

Less than 1.0, the density of water.

Gravity is a force and does not have energy in itself, so it does not have a specific number of joules associated with it. However, potential energy due to gravity can be calculated using the equation PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

To overcome gravity, one would need to generate enough force to counteract its pull. This can be achieved through technologies like rockets for space travel or by utilizing principles of buoyancy in water. Ultimately, gravity is a fundamental force of nature that cannot be fully repealed, but its effects can be mitigated.

It's maybe the most famous scientific experiment, Galileo Galilei's dropping objects from the leaning tower of Pisa in order to prove that all objects fall at the same rate, whatever their mass.In his Two New Sciences (1634) Galileo discusses the mathematics (first to apply mathematics for physics analysis) of a simple type of motion what we call today uniform acceleration or constant acceleration. Then he proposes that heavy bodies actually fall in just that way and that if it was possible to create a vacuum, any two falling bodies would travel the same distance in the same time. On the basis of this proposal, he predicts about balls rolling down an inclined plane, Finally, he describes some inclined plane experiments corroborating his theory.Galileo used inclined planes for his experiment to slow the acceleration enough so that the elapsed time could be measured. The ball was allowed to roll a known distance down the ramp, and the time taken for the ball to move the known distance was measured. The time was measured using a water clock.Galileo showed that the motion on an inclined plane had constant acceleration, dependent only on the angle of the plane and not the mass of the rolling body. Galileo then argued that free-fall motion behaved in an analogous fashion because it was possible to describe a free-fall motion as an inclined plane motion with an angle of 90°. Using Newton's laws, we can prove Galileo's theory by decomposing the gravitational force, acting on the rolling balls, into two vectors, one perpendicular to the inclined plane and one parallel to it. http://www.physics.smu.edu/~ryszard/1313fa98/1313-Incline_.PDFFollowing his experiments, Galileo formulated the equation for a falling body or an object moving in uniform acceleration: d=1/2gt2.The is some evidence shows that such experiments were performed by various scientists and experimenters preceding Galileo's work about falling bodies and by this disproving Aristotle's assertion that heavier bodies fall faster than light ones.As early as 1544, the historian Benedetto Varchi referred to actual tests which refuted Aristotle's assertion.In 1576, Giuseppe Moletti, Galileo's predecessor in the chair of mathematics at the university of Padua, reported that bodies of the same material but different weight, as well as bodies of the same volume but different material, dropped from a height arrived at the Earth at the same time.In 1597 Jacopo Mazzoni, of the University of Pisa, reported that he had observed objects falling at the same speed regardless of weight and pieces of an object descending at the same rate as the whole.The most notorious of those is Simon Stevin that in 1586 (3 years before Galileo) reported that different weights fell a given distance in the same time. His experiments, with the help of his friend Jan Cornetts de Groot, were conducted using two lead balls, one being ten times the weight of the other, which he dropped thirty feet from the church tower in Delft. from the sound of the impacts they concluded that the spheres fell with the same speed, not as stated by Aristotle. Stevin is regarded by many as the first one to perform falling bodies experiments.Experiments to demonstrate the phenomenon.1. Hold on the tip of the fingers of different hands a coin and a paper disc about one meter or more above the floor. Drop both of them simultaneously. The coin will reach the floor before the paper disc. From this experiment is possible to conclude mistakenly that heavier objects fall faster.2. Mount the paper disc on the coin and drop them together. Both objects will reach the ground at the same time. The meaning of this experiment is that not the amount of mass causes falling bodies to fall faster or slower but the resistance/friction of air because air resistance is applied here only to the coin and not to the paper disc and by that we can infer that air resistance and not the amount of mass prevented the paper disc from falling faster - the same as the coin.To exclude the possibility that the coin and the disc of paper attract each other you can show that they do not stick together in any position.Experiments are from:Weiss Moshe, Physics by Experimental Demonstrations, vol II, Jerusalem: Rubin Mass, 1968, pp. 208-209

Between 775 and 840 mg per liter at a temperature of 15C.

First of all the question is erred, helium is part of what is commonly called air. Air is in fact a composition of all the gases and substances that combine together to form the atmosphere within the boundaries of the earth's gravitational field. Helium being the second lightest of the elements composing the periodic table has an atomic weight of 4.002602, nearly 4 times the weight of hydrogen (1.00794), but more than one third the weight of nitrogen (14.00674) and nearly one quarter that of oxygen (15.9994).

Nitrogen 78 % is the most abundant gas

Oxygen 21 %

Argon .934 %

The aforementioned are the "major gases".

The remainder are the "noble gases", including:

Helium (He) .000524 %

Carbon Dioxide (CO2) .0387 %

Neon (Ne) .00181818 %

Methane (CH4) .000179 %

Krypton (Kr) .000114 % (Nothing to do with Superman, Except that

the creators of superman borrowed the name of the element)

Nitrous Oxide (N2O), Nitrogen Diode (NO2), Xenon (Xe), Hydrogen (H), Ozone (O3), Iodine (I), Carbon Monoxide (CO), Ammonia (NH3).

In the lower atmosphere is Water Vapor (H2O), better known as relative Humidity and Rain, which is in concentrations of 1 % to 4 % at surface level.

Water or H2O would have an atomic weight derived from its combined values of 2 Hydrogen atoms and 1 Oxygen atom:

1.00794

1.00794

+ 15.9994

------------------

18.00988

This value is clearly less than that of Neon but since H2O readily bonds with other H2O molecules it becomes heavier and thus sinks to the bottom of our atmosphere.

In case you are completely unaware of the difference of elements and molecules, elements are the most fundamental building blocks of all matter, whereas molecules are the combination of elements in the creation of all other matter or compounds.

In summary Helium is lighter. Just as a beach ball is a thin polypropylene film filled with air (atmosphere) and floats readily on water, A basketball is heavier (comprised of rubber, or synthetic substance, and leather, filled again with air (atmosphere) and thus floats deeper in the water as does the beach ball.