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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

Can a gravity hammer deflect banshee missiles?

No, a gravity hammer cannot deflect Banshee missiles. The gravity hammer is primarily a melee weapon for close combat engagements, while the Banshee's missiles are launched from a distance and travel at high speeds, making it difficult to deflect them with a gravity hammer.

How does gravity help in riding a bicycle?

Gravity acts to keep the bicycle and rider grounded as they navigate different terrains, providing stability and balance. It also assists in maintaining momentum when going downhill and helps to keep the wheels in contact with the road for traction. Additionally, gravity interacts with the rider's center of mass to help in turning and leaning into corners.

What is the relationship between gravity and newtons?

Gravity is a force of attraction between two objects with mass, and it is commonly measured in newtons (N). Newtons are the unit used to quantify force, and in the case of gravity, it represents the amount of force with which an object is pulled towards the center of the Earth or any other massive body.

How refrigeration cause a decrease or an increase in urine specific gravity?

Refrigeration can potentially cause a decrease in urine specific gravity due to the effects of low temperatures on dissolved solutes in the urine, which can lead to crystallization or precipitation. On the other hand, refrigeration can also cause an increase in urine specific gravity if there is evaporation of water, concentrating the urine. Overall, the impact of refrigeration on urine specific gravity may vary depending on the specific composition of the urine and the conditions of refrigeration.

What is the effect of gravity on velocity?

Gravity affects velocity by changing the acceleration of an object. As an object falls, gravity accelerates it, increasing its velocity. Without gravity, an object would move at a constant velocity.

What does the law of gravity say?

The law of gravity, formulated by Sir Isaac Newton, states that every mass attracts every other mass in the universe with a force proportional to the product of their masses and inversely proportional to the square of the distance between their centers. This is what causes objects to be pulled towards the Earth's center and governs the motion of celestial bodies.

How do you calculate center of gravity for a taper shaft?

To calculate the center of gravity for a taper shaft, you would need to consider the varying cross-sectional area along the length of the shaft. You can use an integral approach to determine the centroid of each cross-sectional area and then calculate the weighted average of these centroids to determine the overall center of gravity of the taper shaft. Alternatively, you can simplify the taper shaft as a series of smaller sections with uniform cross-sections and calculate the center of gravity for each section, then determine the overall center of gravity using the weighted average of these section centroids.

Is there gravity on the asteroid belt?

Yes, there is gravity in the asteroid belt, but it is much weaker than Earth's gravity due to the belt's low mass and spread-out distribution of asteroids. This weaker gravity allows the asteroids to remain in their orbits without being pulled together into a single body.

What two factors play an important role in gravity?

Mass and distance are the two factors that play an important role in gravity. The more massive an object is, the stronger its gravitational pull. Additionally, gravity weakens as distance between objects increases.

What does 0.907 gravity mean?

A gravity measurement of 0.907 refers to the specific gravity of a liquid, indicating its density relative to water. This measurement is commonly used in homebrewing to determine the potential alcohol content of a fermented beverage. A gravity of 0.907 typically suggests that fermentation is nearly complete, with only a small amount of residual sugars remaining in the liquid.

What is the gravity of Kepler 16b?

The gravity of Kepler 16b is likely similar to that of Saturn, which is around 1.07 times the gravity of Earth. This means that if you were standing on Kepler 16b, you would feel slightly lighter than on Earth.

What is the minimum force to go against gravity?

The minimum force needed to go against gravity is equal to the force of gravity acting on the object, which is the object's weight. This force can be calculated using the formula F = m*g, where F is the force, m is the mass of the object, and g is the acceleration due to gravity (approximately 9.8 m/s^2 on Earth).

Where is the center of gravity for a circular bangle?

The center of gravity of a circular bangle is at the geometrical center of the bangle, which is also the center of the circle. This point is equidistant from all points on the circumference of the bangle, making it the point where the weight of the bangle can be considered to act.

What does the center of gravity mean?

The center of gravity is the point within an object or system where its weight is evenly distributed in all directions. It is the point around which the object will balance itself under the influence of gravity. It is a crucial concept in physics and engineering for understanding stability and balance in various systems.

Does gravity increase or decrease with mass of an object?

Gravity increases with the mass of an object. The more massive an object is, the stronger its gravitational pull will be. This is why larger planets like Earth have a stronger gravitational force than smaller objects.

How does gravity affect the mass of dropping stuff?

Gravity accelerates the centres of the two masses towards their joint centre of mass. Obviously, if there is a huge difference between the two objects, such as a ball and the earth, the centre of mass of the combined system will be indistinguishably close to the centre of the earth and so it will accelerate the ball towards the centre of the earth. Also, while it will accelerate the earth towards the ball, the force will be too small to measure.

Why do people think that rubber sheet with a ball analogy for gravity is good?

I don't know the reason.

A lot of really clever people have used it, but I think it's more or less useless.

I used to like it, before I really thought about it.

The idea is that the ball distorts the rubber sheet just like mass distorts space.

The distortion of space (spacetime to be exact) is the basis of our modern understanding of gravity.

Some people like this analogy until you point out the problems.

Some things are just really hard to explain.

It was simpler with Isaac Newton. He just had no explanation for gravity.

OK, it's only an analogy, but here's one problem:

The rubber sheet is only 2 dimensional, of course.

Here's another problem : The whole analogy is meant to "explain" gravity.

What causes the ball (mass) to distort the sheet (space)?

The ball is pulled towards the Earth by.........gravity.

Yes, but no , well, I mean........

Does gravity on acts on heavy objects?

Answer: Yes. Gravity affects everything. I don't know why this is even a question.

Answer: The reason something is "heavy" in the first place is because of gravity.

What does the strength of gravity depend on?

The strength of gravity depends on the value of the universal gravitational constant.

The size of the gravitational forces between two objects depends on the product

of their masses, and on the distance between their centers.

Who developed the laws of gravity and motion?

Englishman Sir Issac Newton (1643-1727) developed the three laws of motion and the theory of universal gravitation. A more accurate model for the effects of gravity, General Relativity, is sometimes used today. It was developed by the German scientist Albert Einstein in 1915/16. Most people are familiar with Newton's theory which is taught widely in high school physics.

How do you calculate specific gravity of a petroleum product?

How to calculate the specific gravity of a petroleum product involves using the ratio of the specific product density to that of water. This type of calculation is always determined at 60-degrees Fahrenheit.

Is a function of and varieties with gravity?

The function of gravity is to attract objects with mass towards each other, creating a force that pulls objects towards the center of the Earth. This force is essential in keeping the planets in orbit around the sun and maintaining the structure of the universe. Gravity plays a key role in determining the shape and behavior of celestial bodies, as well as influencing the motion of objects in space.

Does gravity decrease when driving uphill?

Technically as you go up the hill Gravity will decrease.

But the amount is too small to measure by anymethod currently available.

So in effect and for practical purposes, NO

What would be the theoretical minimum size or mass of an atom in order for it to be held together by gravity or is it not feasible at all?

It is not feasible for an atom to be held together by gravity because gravity is very weak at the atomic scale compared to the electromagnetic forces that bind atoms together. In theory, even if you had an atom small enough for gravity to be the dominant force, quantum effects would destabilize it.

When a large objectsvmove closer together the force of gravity becomes?

Stronger, as the gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. By moving closer together, the distance between the objects decreases, increasing the gravitational force between them.