Gravity

Specific gravity is the old name for relative density i.e. The density of a fluid relative to that of water. High spec gravity on it's own is relatively meaningless but is a term used in the brewing industry to indicate the strength of the must before fermentation which is indicative of the strength of the finished product.

a solution that has a specific gravity of 1.2 , has a density of 1.2 g / mL

185 g x 1 ml / 1.2 g = 154 mL

737.22 - see http://www.simetric.co.uk/si_liquids.htm

The sp. gravity of the petrol(vehicle) is 0.73722 and that of natural petrol is 0,71122

Note that specific gravity has no units.

Yes, fire can exist in zero gravity. And it's amazing to see. At least on a small scale. There was a real fire aboard the Mir space station, and it burned as predicted - in a sphere around the fuel source. A candle was lit aboard Mir and it burned with the faintest blue color, but the cameras could not see this. A match was also lit in the space station as a test. You can see a 5-second clip of a flame in zero gravity on YouTube, and a link is posted below.

Question should read:

"What is the force between you and the Earth (convert to pound-force) using Newton's Law of Gravity assuming your weight is 60kg?"

Answer:

F = G*(m1*m2)/r²

= 6.673/100000000000*(60*5973600000000000000000000)/(6371000*6371000)

= 6.673*60*5976000/(6371*6371)

= 6.673*60*59736000/40589641

= 6.673*6*59376/4058.9641

= 585.7 Newtons

= 585.7 * 0.2281 lbf

= 133.6 lbf

Check: 60kg = 60*2.2= 132 lb which is roughly OK

Gravity does not "end".

Gravity is a fundamental force of the Universe. Gravity exists between all objects that have mass, with the force diminishing in proportion to the square of the distance (inverse square principle) between the the two masses.

As all matter has mass, the only way to end gravity would be if there were no matter in the Universe; i.e. the end of the Universe!

The center of gravity is usually calculated by finding the average of the weighted positions of all the parts of an object or system. It is the point where the weight of an object is concentrated and can be located using specific formulas and measurements depending on the shape and distribution of mass. Experimentally, you can try hanging an object from different points and finding where it balances perfectly to locate its center of gravity.

Our normal experience is that if we throw something into the air, it is going to fall down again, leading to the expression, what goes up must come down. However, it is also possible to put a satellite into orbit, which goes up and stays up, at least for a long time. But even artificial satellites don't really stay up forever; their orbits decay.

The specific gravity of a substance is the ration of its density to some standard, almost always water for liquids or solids. In this case, Feldspar has a specific gravity of about 2.6.

The gravitational field is NOT measured in newtons - the newton is a unit of force. Valid units are newtons / kilogram, or the equivalent meters / second2. At its surface, Mercury's gravitational field is 3.7 meters/second2, which is the same as 3.7 newtons/kilogram.

The specific gravity of wood refers to its density compared to the density of water. It is a measure of how much a piece of wood weighs relative to its size. Different types of wood have different specific gravities, with hardwoods typically having higher values than softwoods.

The specific gravity of acetone is approximately 0.79 at 20°C.

The acceleration due to gravity for a cotton ball is approximately 9.81 m/s^2. This value is the same as the acceleration due to gravity for any object on the surface of the Earth, regardless of its mass or size.

Gravity is the force that pulls objects with mass towards each other. This force is the reason why objects fall to the ground when dropped and why planets orbit around the sun. The process of gravity is governed by Newton's law of universal gravitation, which describes the attraction between two objects based on their masses and distance.

Gravity is an attractive force between bodies. In a qualified sense they can be said to pull on one another. But the sun for instance doesn't pull on the earth as if its on the end of a rope. Bodies attract one another by some undiscovered means and they react to this attraction by moving spontaneously towards one another. There is a force of attraction that acts like a pull but there is no force pulling in the sense that one pulls a boat with a rope. Bodies react spontaneously to this attractive force just as a man and women in love attract one another and react by self moving towards each other. They can be said to pull one another to each other but that is in a qualified sense since they are not physically pulling but physically attracting each other. Whether the cause of this is waves, gravitons, Einstein's explanation I certainly do not know. The order of the universe may be in the hands of an intelligent Being who orders all these things in ways known only to Him but in such a way that the order can be discovered and made known and expressed in mathematical formulations which leads to further discoveries.There is no pull as such!!!!! Bruce Barron

Your ideal scenario describes the near-perfect vacuum and weightlessness of space. As you said, a one-kilogram mass will accelerate at one meter per second squared if a net force of one newton is applied to it. But you wish to know what happens under real-world conditions, such as the existence of friction (air resistance, rolling friction, and sliding friction) and gravity. If the motion is in the horizontal plane and at low speeds, air resistance is negligible. Friction between surfaces and rolling friction are significant, however, and will act against any force used to accelerate an object. Gravity plays a role in the consideration of friction, as well, inasmuch as the frictional force is proportional to the Normal Force, which is related to the object's weight.1 For motion in two directions, such as the path of a kicked ball or the trajectory of a bullet fired from a gun, air resistance plays a large role as does the acceleration of gravity. Friction and the effects of gravity play a major role in calculations involving the motion in the vertical direction, whereas the acceleration of gravity plays no role in the calculations of the motion in the horizontal direction.2Basically, keep in mind that weight is a force directed downward. When determining the net force acting on an object, its weight is just one of the forces acting on it. 1. For an object resting on a flat surface with zero incline, the Normal Force is equal and opposite to the object's weight (W = mg). The frictional force is calculated to be uN, where u (the Greek letter mu) is the coefficient of friction. The frictional force opposes the direction of motion. For objects on an inclined plane, the Normal force is equal to W*cos(theta), where theta is the angle of incline. 2. Weight is a force perpendicular (orthogonal) to horizontal motion and, hence, can have no effect upon it.

Specific gravity is often defined relative to water, in which case the specific gravity of air is 0.001225. Specific gravity can also be defined relative to the density of air, in which case the specific gravity of air is exactly 1. Specific gravity is often defined relative to water, in which case the specific gravity of air is 0.001225. Specific gravity can also be defined relative to the density of air, in which case the specific gravity of air is exactly 1.

Yes, people can still breathe in areas without gravity, as long as there is a sufficient supply of oxygen. Gravity affects the distribution of air within an atmosphere, but it does not impact the ability to inhale and exhale.

Sir Isaac Newton is credited with discovering gravity. He did so by observing how apples fell from trees and developing the law of universal gravitation, which states that every mass attracts every other mass with a force proportional to the product of their masses and inversely proportional to the square of their distance.

A women's body structure is such that they have a lower center of gravity, because of their wider hips and heavier bond structure in the lower abdominal part of the skeleton, as compared to men's structure. Men in general have wider shoulders as compared to women.

This lower center of gravity is the main cause for women to be able to bend forward in the kneeling position without falling over forward. When men try to bend over, they will fall forward because of the location of their center of gravity. Then this center of gravity passes beyond the knees, their bodies will topple forward.

Gravity dams are constructed using large quantities of concrete to resist the force of water. The concrete is typically poured in layers, allowing each layer to cure before adding the next one. The weight of the dam pushes it down and anchors it to the ground, providing stability against the water pressure.

A gravity spring is a concept used in physics to describe a hypothetical scenario where an object is moving under the influence of gravity and behaves like a spring. This means the object oscillates up and down like a spring would, but gravity is the force causing the motion rather than an actual physical spring. It is a theoretical construct used to simplify calculations and understand certain physical phenomena.

All things that have mass also have gravity. Newton's equation of: Fg = Gm1m2/r2

Where Fg is the force of gravity between two objects, G is the gravitational constant of 6.67 E -11 m3kg-1s-1, m1 and m2 are the masses of the two objects and r is the radius between the objects; shows that any two objects exert an attracting force between each other. In other words, your television does in fact pull you towards it, and you it. Because the gavitational constant is so small, however, the force is only noticeable when at least one of the objects has a very large mass, such as a planet. Although Venus is less massive than Earth, all heavenly bodies including the moon (which the landings have shown) have noticeable gravity. The gravity of Venus is about 90% of Earths. there is a simpler answer on nasa.com

The gravitational force on an object near the surface of the earth, and the object's

acceleration due to gravity, are always directed downward (toward the center of

the earth), regardless of how the object happens to be moving at the moment.

Whether 'downward' is called 'positive' or 'negative' is completely up to you,

and depends only on how you have defined the coordinate directions for your

experiment or observation.