answersLogoWhite

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

What is the specific gravity of halite?

The specific gravity of halite (NaCl) is approximately 2.16. This means that halite is about 2.16 times denser than an equal volume of water. It is often used as a reference point for specific gravity, with values higher than 2.16 indicating higher density and values lower indicating lower density.

How are push and gravity and friction the same?

Push, gravity, and friction are all examples of forces that can cause objects to move or change their motion. Push and gravity are forces that can cause objects to accelerate, while friction is a force that opposes motion and can cause objects to slow down. They all involve interactions between objects and the forces acting on them.

What is the example of gravity?

An example of gravity is the force that causes objects to fall to the ground when dropped. Gravity is what keeps planets in orbit around the sun and astronauts in orbit around Earth. It is a fundamental force of nature that attracts all objects with mass towards each other.

What is the effect of gravity on object?

Gravity is a force that pulls objects towards each other. On Earth, gravity causes objects to fall to the ground when dropped and gives weight to objects. The strength of gravity depends on the mass of the two objects and the distance between them.

True or false a glacier moves under the force of gravity?

True. Glaciers move downhill under the force of gravity, as the weight of the ice causes it to slowly flow over the land. This movement can occur through processes like basal sliding and internal deformation.

How does surface area of an object affect gravity?

The surface area of an object does not directly affect the force of gravity acting on it. Gravity depends on the mass of the object and the distance to other massive objects, like planets. However, a larger surface area may result in more air resistance when falling, which can affect how quickly the object accelerates due to gravity.

Aluminum has a density of 171 lb ft3 What would be its specific gravity?

The specific gravity of a substance is the ratio of its density to that of water. Since water has a density of 62.4 lb/ft3, the specific gravity of aluminum can be calculated as 171 lb/ft3 / 62.4 lb/ft3 ≈ 2.74.

Does terminal speed and terminal velocity are the same?

Yes, but only in free-fall. If I'm driving at 60 mph, I have a constant velocity, but it's not my "terminal velocity" in the sense that there is no limit to my acceleration caused by air friction. But yes, an object in free-fall reaches its terminal velocity when its velocity stops increasing (acceleration=0).

What is the difference between force of gravity and gravity?

By Gravity we mean the energy of Gravity E= - mGM/r = -mu/r. Force is the first derivative of energy so the force of Gravity is dE/dr = mu/r^2.

Force is the first derivative for all kinds of energy.

Why does gravity pull objects down?

The forces of gravity between two objects act along the line between their centers.

That means that gravity attracts the Earth toward the center of you, and it attracts

you toward the center of the Earth.

Now lets talk about "down":

"Down" is the short name we use for "toward the center of the Earth". Since that is

the direction in which we always experience the force of gravity, we tell each other

that gravity always pulls things 'down'.

Take a look at a globe some time, or even a grapefruit, and imagine billions of

people walking all over it, with everybody telling everybody else that gravity

pulls things 'down'. It should dawn on you pretty quickly that 'down' in Hawaii

and 'down' in central Botswana are two completely opposite directions. Same

for southern Chile and central Mongolia. "Down" completely depends on where

you are.

What is it when there is no net force of gravity?

When there is no net force of gravity, all the opposing forces of gravity cancel out. For example, most of the way to the moon, the gravity pulling from the moon would cancel out the gravity from the Earth. At that point, there would be no net force of gravity.

KEEP IN MIND, that this is something very different from the weightless feeling you get when falling. When falling, gravity still affects you (hence you accelerate downwards). If there is no net force of gravity, gravity will not affect you at all.

How can you explain gravity?

Gravity is the attraction between all matter. The force of gravity increases as matter gets closer together, and it increases as more matter is gathered. For example, that computer you are sitting in front of is attracting you, and you are attracting it. However, due to the immense gravity exerted by the earth, it is almost unnoticeable. Gravity was explained by Sir Isaac Newton, the man who is believed to be the developer of the theory of gravity. It is basically the driving force of the universe. Gravity is the driving force of the universe. It is the force that created planets, and it's the force that gives black holes their immense power. Gravity holds the whole world together.

Acceleration due to gravity by dropping?

When an object is dropped from a certain height, it accelerates towards the ground at a rate of approximately 9.81 meters per second squared on Earth due to gravity. This acceleration remains constant throughout the object's fall, disregarding air resistance.

What is an old gravity flow heating system?

This is a system where the boiler heated fluid flows by the principle of gravity-flow instead of pumps. This principle requires the distribution system to be sized correctly and installed with accurate slopes for the hot water to rise in and flow to the terminal units.

How is gravity and no gravity alike?

I know for fact that having no gravity means that we would all just be suspended in mid air. Having gravity is just like now on earth when we all touch the ground like normal people. These are alike because they both have to do with gravity and they both determine what positions us on earth.

How does inertia affect gravity?

Inertia does not affect gravity, these are two entirely separate things, even though they both are produced by the same thing, which is mass. Mass creates both inertia and gravity, but inertia and gravity do not affect each other.

What is the difference of gravity and no gravity?

Gravity is a attraction, or pull, between any two objects due to their mass.

If we don't have the gravity on our Earth surface, everything in the earth would float in to the space, and the people will die>.<

What maintenance does a gravity feed lubricating system need?

A gravity feed lubricating system typically requires periodic inspection to ensure adequate lubricant levels, proper functioning of components, and any required adjustments. Additionally, regular cleaning of the system's components and filters may be necessary to prevent clogs and ensure smooth operation. It's important to follow manufacturer guidelines for maintenance to ensure optimal performance and longevity of the system.

Is the gravitational force the same everywhere on earth?

i reckon that it is right because according to newtons third law it explain that when force is exert on another object it will react with same magnitude so it might be right that it can apply same magnitude force as it has been apply.

What is marbles specific gravity?

The specific gravity of marble typically ranges from 2.55 to 2.80. This means that marble is denser than water, as water has a specific gravity of 1.

What is plutos gravity like compared to earth?

Pluto's gravity is about 6% that of the Earth. A person weighing 100 lbs on the Earth would weigh 6 lbs on Pluto.

About advantages and disadvantages of gravity?

ADVANTAGE OF GRAVITY

Gravitational force has played a major role for human existence like:

1. Because of earth's gravity we are able to stay on the top of it and other creatures as well.

2. Because of gravity there is a waterfall by which we can use it to produce energy.

3. Because of gravity there is rain that pours on our land.

DISADVANTAGES OF GRAVITY:

  1. Earth's gravity can pull any large rocks called asteroids, once it entered into our atmosphere, that an impact could produce catastrophic damage.
  2. Because of gravity there could be a falling objects from a high rise buildings, airplanes, spaceships that can kill human.
  3. A human that will fall from about 20 feet or so above the ground could be fatal because of gravity.

Will the earth stop moving for 3 days?

No, the Earth will not stop moving for three days. The Earth rotates on its axis, causing day and night, and orbits the Sun, causing seasons. If the Earth were to suddenly stop moving, it would have catastrophic consequences for life on the planet.

Why does gravity slow down time?

think of it this way gravity is the time so the more gravity the more time.

with out gravity there would be no time because of gravity stuff happens.

with out time there would be no gravity. so you can think of it as the same think instead of diffrente thinks.

How can you demonstrate the force of gravity?

The force of gravity can be demonstrated by dropping an object from a height and observing it fall to the ground. Alternatively, one can use a pendulum to show the constant pull of gravity acting on the swinging object.