0
Gravity
One of the four fundamental interactions, gravity is responsible for the fact that any objects with mass attract one another. According to general relativity, it is a space time curvature, but according to quantum mechanics it is the result of exchanges of virtual gravitons.
4,784 Questions
Why don't we feel gravitational force?
We do feel gravitational force if that force is not nullified by another force. But for an equal supporting force, we will be moving toward the center of earth and in that case, we will feel the gravitational force.
While lifting an object up , we feel the gravitational force.
==============================
Another thought:
We don't feel anything that is constant and never-changing.
We only feel things when they change.
Another example is: Velocity, or speed and direction of motion.
You can relax quite peacefully, and even nod off, in a passenger jet
cruising at 500 miles per hour, 7 miles above the ground. You're
reminded of your situation only when the aircraft turns, speeds up,
or slows down. (And not even so much in a bank and turn if they're
well coordinated.)
Another example: A modern, high-speed elevator (a lift).
You feel little or nothing during the high-speed 'cruise' portion
of the journey, but you become aware of the motion during the
acceleration phases, at the beginning and end of a long transfer.
What would happen if there was no gravity ?
If gravity suddenly went away, we would fall off and float in space <DEADDD!!!>
.......................................................
If there had never been such a thing as gravity, there would be no planets or stars to create life to fall off of them. They were formed and placed due to gravity.
Why does an apple fall to Earth?
The apple has mass. The Earth has mass. The apple falls down, and the Earth "falls" up. The Earth's motion is not measurable. The apple's motion is.
What are some examples of the law of universal gravitation?
The orbits of the planets around the sun is a good example. The planets are constantly circling the sun. Black holes are probably the most massive and awesome example of gravity. They cannot be seen, but the way stars and light move around black holes, we know that they are there. The Swarz Child Radius is the radial distance where light can't escape from a black hole. It is the perimeter surrounding a black hole and if anything including light goes inside that perimeter, it will be sucked in by the black holes gravity.
What is the importance of Newton's law of gravitation?
It explains why the planets remain in in orbit around the sun. Also, why moons orbit their planets. It also explains why humans remain on earth.
Does earths gravity pull the moon toward it?
The force of gravity (simple theory) is equal to the product of the masses of the two objects and the square of the distance between them, times the gravitation constant of the universe. The Earth pulls on the moon, enough to pull it towards Earth, but no enough to make it fall. The force is only enough to keep it falling, but moving around at a speed that is countered by the curvature of the Earth. It is also pulling on us, which causes tides. Gravity is the natural force that brings masses together. It is relatively weak when compared to other forces, but it adds up with larger masses.
gravity, acting upon anisotropies in the distribution of matter caused by quantum fluctuations inflated to cosmological scale by the rapid inflation of the universe.
Matter comes together to form stars under the force of gravity. Gravity is a force that causes all objects to attract each other with different amounts of force depending on their masses and their distance.
In a random cloud of gas that is big enough, all pieces attract each other and they eventually gather together, and then the big pieces attract the others in. That does not stop until enough temperature is generated to start nuclear fusion, and the star settles into a stable size for the first few billion years of its life.
This is clearly homework and Wiki will not help you cheat so it is time to get out your notes or book and think about this question. Get to work.
All of its wet substants will floot in the air.E.g.water,pise and dodo.
What Happens when a human reaches terminal velocity and lets say grabs a rope or ladder or ledge?
When a human reaches terminal velocity and grabs onto a rope, ladder, or ledge, the impact force is still substantial due to the velocity and mass of the falling object. This sudden stop could result in serious injuries or even death from the force of the impact and the rapid deceleration. It's essential to avoid free-falling from heights as the risks are extremely high.
What is specific gravity of crude oil?
Specific gravity of crude oil is how light or heavy it is compared to water. If the API gravity is less than 10 it will float in water.
What are the units of acceleration?
Acceleration is a change in velocity per unit of time. Velocity is distance (d) per unit of time (t). That makes acceleration distance per unit of time squared, or something like this:
We have distance/time2, or d/t2
Distance is commonly measured in meters, and time in seconds. This makes acceleration appear in meters per second per second, or meters per second squared, or m/sec2.
m/s2
meters per second squared
Is it ok to watch Gravity Falls with my 4 years old niece?
Well no it comes blood full senes and very disburing senes
What object changes mass of an object when the pull of gravity changes?
The mass of an object doesn't depend on the gravitational force on the object.
What is weight and specific gravity of meat?
Specific gravity of a rib section of beef runs from about 1.056 to 1.067, with prime and commercial beef being the lightest and standard beef being the most dense.
Information taken from the site in related links.
Does Gravitational constant equals 6.67300 x 10-11 m3 kg 1 s2?
No.
G = 6.674 * 10-11 m3kg-1s-2
The powers for mass and time were incorrect.
What effect does distance have on gravity?
Gravity is governed by an "inverse square" relationship. This means gravity gets exponentially weaker the farther away you get. If I am 4 miles away from the center of the Earth, I will experience 1/16th the gravity that someone 1 mile away will experience. I am 4x farther away, but I get 16x less gravity.
On the earth's surface, how much force does the pull of gravity have on 1 kilogram of mass?
The force of gravity on 1 kilogram of mass on the Earth's surface is approximately 9.8 newtons.
What would happen to the moon if no gravity were acting upon it?
It would proceed in one direction along a straight line at a speed of about 1.022 km/s
Which force is presented between all objects in the universe?
Gravity is the force that is present between all objects in the universe. It is responsible for the attraction between objects with mass, such as planets, stars, and galaxies.
Does the amount of water you drink each day correspond to the specific gravity of your urine?
The amount of water you drink each day corresponds to the specific gravity of your urine. Specific gravity ranges from 1.001 to 1.035.
What is the big idea of particles?
Particles are microscopic and explain the properties of liquids, solids, and gases. The strength of the bonds between particles is different in each state.
In digestion, the chunks of foods we eat must be broken down into particles to be used by the body.
