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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
What is a stimuli for gravity?
Very generally, gravity is the by-product of a frequency vibration between two or more atomic particles creating a subatomic vacuum between the two or more particles.
Does the sun's gravity affect your weight?
Technically, yes. But certainly not enough that you would notice it.
In my drawer full of file folders full of articles that describe gadgets which I will
build some day, there is one for an electronic thing that monitors minute changes
in the force and direction of local gravity. But I mean really truly minute changes ...
if you build it with enough care, so it says, you can see the daily variations that
are due to the over passing of the sun and moon. Now that's minute!
The ratio of (your weight towards the Earth) and (your weight towards the sun)
should be
earth's mass/sun's mass times [distance to sun's center/distance to Earth's center]2 .
When I plug some numbers into that, I get about 1,623 . So if, for your mass, your
weight on Earth should be 200 pounds, then the influence of the sun would make
you appear to be something like 2 ounces lighter than that at noon, and 2 ounces
heavier at midnight. (This completely ignores any influence of the moon, which
probably ought to figure into it too.)
I used:
Earth radius . . . 4,000 miles
Sun distance . . . 93 million miles
Earth mass . . . . 5.9742 x 1024 kg
Solar mass . . . . 1.989 x 1030 kg
What affect does gravity have on all matter in the universe?
Because of the existence of 'gravity', there are a pair of equal forces between
every two specks of mass in the universe. Greater masses and smaller separations
result in greater forces. These simple facts lead to the formation of galaxies, stars,
and planets, and to virtually all of the motions we see, including orbits.
Where do you go on earth to experience zero gravity?
I think there is zero gravity at the Dead Sea next to the country of Jordan.
Because you can float on the water.
(Brilliant and totally elegant ! Now we know that there must be zero gravity anywhere
in any ocean because even heavy steel loaded cargo ships can float there.)
I disagree with this answer because if there is zero gravity there, then the water
should be floating too!
(Doesn't that go for both answers ?)
What happens when the sun's gravity combines with the Moon's gravity and where does it occur?
The gravitational pull of the moon and sun combined just makes the force stronger, and it causes high tides in the oceans.
How is the atmosphere effected by gravity?
Gravity causes the atmosphere to stay here on Earth,
where there is a huge demand for it.
What is copper specific gravity?
Gravity is constant. It does not change based on the element, only the relative distance from the a specific body can reduce the effect of gravity (moving away from the earth lessens its gravitational pull on an object).
What would happen to projectile without gravity?
It would keep moving at a constant speed in the same direction forever, or until it hits another object.
What happens when the gravitational force acting on an object is changed?
When the gravitational force acting on an object changes, the object's weight may change accordingly. If the force increases, the object will feel heavier, and if the force decreases, the object will feel lighter. This change in gravitational force can also impact the object's motion and trajectory if it is in free fall or orbit.
What is a big assembly of stars gasand dust that is held together by gravity?
A galaxy is a big assembly of stars, gas, and dust that is held together by gravity. They come in different shapes and sizes and contain billions to trillions of stars. Our own galaxy is called the Milky Way.
How powerful is gravity on the moon?
Gravity on the moon is about 1/6th of the gravity on Earth, so objects weigh much less on the moon compared to on Earth. This lower gravity is one of the reasons why astronauts can jump higher and move more easily on the moon's surface.
Gravity hills are an optical illusion where a slight downhill slope appears to be an uphill slope. This phenomenon is a result of the surrounding landscape and visual cues. While the experience can seem mysterious, it is not a defiance of gravity but rather a trick of perception.
Does wind affected by gravitational force?
Wind is primarily caused by differences in air pressure in the atmosphere and is not directly affected by gravitational force. Gravitational force does play a role in holding the atmosphere close to Earth's surface, which in turn impacts the distribution and behavior of winds.
Is retardation positive or negative acceleration?
Retardation or deceleration is negative acceleration. It is opposite to the direction of velocity.
Does mass impact the rate at which objects fall?
No, all objects fall at the same rate in a vacuum regardless of their mass, as stated by the principle of universal gravitation. This phenomenon is known as the equivalence principle, which was famously demonstrated by Galileo's experiments with different masses dropping from the Leaning Tower of Pisa.
What forces would be acting upon a motor boat on water?
force from the engine, accelerating the mass, opposed by drag of air and water resistance
What are the variables that effect the strength of gravity?
The strength of gravity is primarily determined by two variables: the mass of the objects involved and the distance between them. The greater the mass of the objects, the stronger the gravitational force. Conversely, the farther apart the objects are, the weaker the gravitational force.
What is the acceleration of a vehicle that changes its velocity from 500 kmh to a dead stop in 20 s?
The acceleration of the vehicle can be calculated using the formula: acceleration = change in velocity / time. First convert the velocity from km/h to m/s (500 km/h = 138.89 m/s). The change in velocity is 138.89 m/s (final velocity) - 0 m/s (initial velocity) = 138.89 m/s. So, the acceleration is 138.89 m/s / 20 s = 6.9445 m/s^2.
How far does a car going 20mps and decelerating at -5mps2 go before it comes to a stop?
Initial speed = 20 m/s
Final speed = 0
Average speed = 1/2 (20 + 0) = 10 m/s
Deceleration = 5 m/s2
Time to stop = 20/5 = 4 seconds
Distance = (average speed) x (time) = (10) x (4) = 40 m
When we first looked at this question, we thought that the 'm' was 'miles'.
But that would have meant that the car is going 72,000 mph until it starts
decelerating at 820 G's, and we realized that before it ever came to a stop,
there would be nothing left of the driver and very little of the car. So we
decided that 'm' is most likely 'meters'.
How does satellite operates through the use of gravity?
Satellites operate through the use of gravity because the force of gravity on the satellite results in circular motion around the earth or any other celestial body, and if that force was too big it would cause the satellite to come crashing down and if it were too small the satellite would just go flying off into space
Without knowing the drag (the air resistance) caused by your shape, it is impossible to answer your question.
Without drag, the only force acting on a body is gravity and this is independent of the body's weight.
Drag is dependent upon the body's ability to move through the air and this is also independent of the body's weight - it depends on the shape of the body and how it allows the air to flow around it.
