Recent questions tagged gravity

Description : Why do we call the theory of gravity a theory and not a law?

Last Answer : I’ve always heard it referred to as the law of gravity.

Description : How is it possible for a gravitational force to warp space-time around itself?

Last Answer : It's a little useless to speculate why a law of physics exists, isn't it? I don't think there's a reason; it's like asking why the speed of light is what it is. I guess it's arbitrary, ... whatever. Why does gravity warp spacetime? Fuck if i know, it just does. Maybe I don't understand the question.

Description : What is your top 10 list of worst movies of 2013?

Last Answer : answer:I was way too broke to see 10 new films this year, but these were pretty awful: Mama Oz the Great and Powerful

Description : Why is this satellite going to fall from the sky? And how can they predict the day so accurately ?

Last Answer : The force it exerts while spinning around the earth that counters gravity is what kept it up. The satellite was actually more or less decommisioned back in 2004(?) and its inertia has finally worn off to the point where gravity is now reeling it in for the kill so to speak.

Description : If we were to take all of the humans on Earth and tape them together, creating one big ball, how strong will our gravity be?

Last Answer : Depends on the kind of tape being used.

Description : If photons have no mass, why are they affected by gravity? (Strange Universe series)

Last Answer : answer:Perhaps the conditional is dependent upon having an anti particle, of which the photon has none, allowing it to be simultaneously both wave and particle. But that hypothesis would be ... which creates the gravity lens. Could be a unique property of not having an antiparticle counterpart.

Description : Here's one to keep us on our toes. What's your gut feel about GUT and TOE? (see details)

Last Answer : answer:I think any postualting on when is a bit premature. I can't help but feel that there are a few missing pieces of the puzzle yet and that many of our assumptions will have to be ... wealthiest nation sitting it out for the large part. Great question. I predict much fun in this thread

Description : How can 3-dimensional space be curved in a 2-dimensional plane cut through it?

Last Answer : A doughnut, its the only shape space could take in which all physical laws still apply.

Description : Can you jump off of a falling object before hitting the ground and save yourself?

Last Answer : Since you would already be falling down together with the object at the same speed as the object, jumping off the object would at best result in a minimally diminished impact velocity, assuming your ... a watermelon with your brain splashing out like jelly. And you would die, too, most certainly.

Description : How long until a new planet forms in the asteroid belt?

Last Answer : A very long time, it at all, because, contrary what you see in movies, the asteroid belt is not a place where you fly in with a small ship and have to vigorously dodgel big rocks to avoid ... rocks are so far apart, that it is extremely unlikely to crash into one without precisely aiming for one.

Description : What would you do if you could control gravity?

Last Answer : I would fly over a group of pigeons….

Description : GRAVITY FACTS

Last Answer : Around the Hudson Bay in Quebec, Canada, there is less gravity than on most of the other parts of Earth. In the movie Apollo 13, the zero-gravity scenes are real. The crew filmed about four hours ... If Jupiter had more gravity when the solar system was created, it could have become a second sun.

Description : Define centroid and centre of gravity.

Last Answer : Centroid: It is defined as the point through which the entire area of a plane figure is assumed to act, for all positions of the lamina. e. g. Triangle, Square.  Centre of Gravity: It is defined as ... of the body is assumed to act, irrespective of the position of a body. e.g. Cone, Cylinder.

Description : Write one advantage and one disadvantage each for spring control method and gravity control method.

Last Answer : Advantages of Spring Control Method: 1) The spring-controlled meters may be used in any position. 2) In some instruments, springs can be used as current leads. 3) As springs are light in weight ... only. 2) Scale is non-uniform. 3) Control weights add to the weight of instrument.

Description : The center of gravity of a triangle lies at the point of?

Last Answer : The center of gravity of a triangle lies at the point of concurrence of the medians.

Description : Center of gravity of a thin hollow cone lies on the axis at a height of?

Last Answer : Center of gravity of a thin hollow cone lies on the axis at a height of one-third of the total height above base.

Description : Center of gravity of a solid cone lies on the axis at the height?

Last Answer : Center of gravity of a solid cone lies on the axis at the height one-fourth of the total height above base.

Description : The center of gravity of a uniform lamina lies at?

Last Answer : The center of gravity of a uniform lamina lies at the mid point of its axis.

Last Answer : The gravity controlled instrument has crowded scale because current is proportional to sine of deflection angle.

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