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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
How do you do the anti gravity lean?
You can't do the anti gravity lean like Michael Jackson on your own. Michael Jackson
uses a special device that holds him in place enabling him to lean beyond normal abilities.
When Michael did the lean in "Smooth Criminal" he had cables holding him so he didn't fall, but since cables couldn't work in a live performance he used two pegs that pop out of the
stage when needed to. His shoes had slots in them, so he slid the pegs into the slots and they hold him in place so he can do the lean. The official name for the shoes is US Patent 5255452 Method and Means For Creating Anti Gravity Illusion. Michael had the patent made so no one could use it but the patent was ended in 2005 because he didn't pay the monthly fee.
What is the acceleration due to gravity in India?
The acceleration due to gravity in India is approximately 9.81 m/s^2, which is the standard value commonly used for calculations. It can vary slightly depending on the location within India and factors such as altitude and local geology.
Why is gravitational potential always negative?
because gravity is a force that acts down on an object. In physics up is positive and down is negative
Is gravity measured in cubic centimeters?
No. First, gravity is a phenomenon not something you can measure. What you can measure is the force due to gravity which is measured in "Newtons" , or the acceleration due to gravity, which is measured in meters per second per second. I can't think of anything about gravity that would be measured in cubic centimeters, or cubic anything.
What is the main principle of gravity circulation of hot water known as?
Stratification is wrong,STRATIFICATION
1.a. Formation or deposition of layers, as of rock or sediments. b. The condition of being stratified.
2. A layered configuration.
the answer your looking for is CONVECTION
What is gravity feed lubrication?
gravity feed lubrication is when the lubricant is pumped to the top of the object needing lubrication, and falls on top of the object, covering it and lubricating it. An example would be a wet sump car engine.
What is mass multiplied by gravity?
Force or weight Force= mass X acceleration gravity is an acceleration (9.8m/s2) Weight = mass X acceleration due to gravity
What is the relationship between distance and time?
There is no direct relationship between distance and time. Two airplanes
can easily cover very different distances in the same amount of time.
There can be an indirect relationship, that depends on speed.
Gravity causes older people to shrink.
Answer
Had to chuckle at the first answer though it is not true. Gravity is that force , said to originate from the center of the earth, which affects everything within its influence by attracting it to the earths center. Luckily we have a hard mantle beneath our feet that prevents this from happening.
Who came up with the idea of gravity?
Isaac Newton came up with the idea.
"Many people saw the apple fall, Newton asked why".
Bernard Baruch.
It is the attractive force that all matter possesses for other matter. We're pretty sure of that. We can, thanks to Newton, measure it and describe how it usually behaves. Einstein understood it as an effect of curved space/time, and not as matter dependent.
Thanks to Newton and Einstein, we know enough to think and talk about it, but we still don't completely understand its fundamental nature. We may have to understand the fundamental nature of light before we can understand gravity, since light photons have (we're pretty sure) no mass and yet are affected by gravity (gravitational lensing).
What did Einstein discover about gravity?
That the best description of gravity in our Universe is through his equations of general relativity. Using these equations, scientists can correctly predict the orbit of Mercury as well as the apparent bending of light from stars near a large amount of mass (like our Sun).
A torque acting on an object tends to produce what?
A torque acting on an object tends to produce rotation.
How does gravity play a part in erosion?
Gravity plays a significant role in erosion by influencing the movement of sediment downhill. Gravity causes rocks and sediments to be pulled downward, leading to processes such as mass wasting (landslides) and soil creep, which transport material from higher to lower elevations, contributing to erosion. Additionally, gravity's influence on water flow and the formation of rivers and streams also accelerates the erosion of rocks and soils.
What is mass divided by weight?
Answer #1:
It's (1) divided by (the acceleration of gravity in the place where that mass has
that weight):
weight = mass x g (where g is the acceleration due to gravity)
⇒ mass/weight = mass/(mass x g)
= 1/g
On the earth, g ≈ 9.81 ms-2 ⇒ mass/weight ≈ 1/9.81 ms-2 ≈ 0.102 m-1s2
On the moon, g is approx 1/6 that of the earth, ⇒ mass/weight ≈ 6/9.81 ms-2 ≈ 0.612 m-1s2
If the questioner really meant weight divided by mass it gives the acceleration
due to gravity in that place otherwise I'm not sure of a use of knowing the
reciprocal of the acceleration due to gravity that the questioner asked.
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Answer #2:
If you ask a scientist, that's true answer in the sense that a mass M experiences
a gravitational force Mg and if you measure weight in units of force (which
nobody does). But anyone else would be surprised to learn that a mass M (say
10 grams) would have a weight of anything else but M grams (10 grams).
Sometimes expressed as "grams weight" often just grams for short. If you pick
up a Kilogram, even a scientist would say "its weight is 1 kilogram". The
gravitational force on it is 1g, so if you let it go it will accelerate at a rate force
over mass, which is g. So the answer depends on your units of mass and weight.
That's why science lessons tend to avoid use of "weight". In outer free space
mass would be measured by (say) tension in the string if you whirl it on the end
of it around your head, but the weight (measured by a spring balance) would be
zero (precisely as described in the first answer above, with g=0).
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Answer #2.1:
The problem with discussing mass and weight in the same units, and the reason that this masked contributor is waging a one-man battle to make the distinction recognized and acknowledged by users of this website, is the new problem that
you have now that the space age is here.
As long as we were all irrevocably bound to the Earth, one kilogram of mass would always weigh one kilogram, if you like it that way. We could afford to be sloppy about it, with hardly one out of ten men-on-the-street knowing or caring about the difference, and nobody ever had a problem with it.
But now that some of us have already slipped these surly bonds ... and among
the general population, the younger you are, the better the chance that you will
do so one day before you're done ... those who ignored the distinction begtween
mass and weight all through school, or never even encountered it there, are
poised to step into an inconvenient pile. Because as soon as you pack for your
trip to anywhere else away from Earth, and take along your lucky kilogram,
you're due for a shock when you step out at your destination: Your kilogram
doesn't "weigh" a kilogram there. It weighs something else. If you're on the
moon, for example, your kilogram weighs 0.165 kilogram ! That's the
shock I'm trying to avoid, because if you think the straight dope is too complex
for people to handle now, you haven't seen anything yet.
6.7something depending on atmospheric pressure (colder / higher pressure air, SG gets higher)
Avgas 100LL is about 6.0 pounds per gallon at about 60 degrees F. And at sealevel.
What are the materials for gravity die casting?
Gravity Die Casting is a manufacturing process that involves pouring molten material into a permanent mold in order to produce metal parts which are built to tight tolerances.
The molten materials can be Aluminum, Pewter (or other so called white or pot metals), Zinc or an alloy of Zinc mixed with an amount of copper and aluminum. Basically, any metals that have a lower melting point than steel can be used for Gravity Die Casting.
The permanent mold used in Gravity Die Casting is nearly always built of Steel. This Steel is usually hardened and polished to a high mirror like quality before it's put into use. The exception to Steel Molds are Graphite Molds which are used with less frequency due to the difficulty and health risks involved with machining Graphite.
What does 0 gravity feel like?
It feels like you are weightless, and you can float in the air like you float on water. Houses and other structures would float, too, and you would not be able to live --- or build --- a house that easily. If there was no gravity, things would not stay on the ground, so we need gravity to make sure we do not float to the atmosphere. It feels like you are weightless, and you can float in the air like you float on water. Houses and other structures would float, too, and you would not be able to live --- or build --- a house that easily. If there was no gravity, things would not stay on the ground, so we need gravity to make sure we do not float to the atmosphere.
Sir Isaac Newton is credited with discovering the concept of gravity. His famous work, Principia, outlined the laws of motion and the universal theory of gravitation that explained how objects are attracted to each other.
