59 Answered Questions for the topic Gravity

Gravity Math Science Physics

12/12/21

Question regarding Pendulum on Fictional Planet

This one is a long as its all related. so confusing ...What would the time for 20 oscillations of a 1.0m long pendulum be on Planet X?Given :L = 1.0mAcceleration due to gravity on Planet X =... more
Gravity Math Science Physics

12/12/21

What would the time for 20 oscillations of a 1.0m long pendulum be on planet x

Given :L = 1.0m G on Planet X = 6.91m/s2T=?How do I solve this and which formula do I use?
Gravity Math Science Physics

12/12/21

If you do the pendulum experiment on a planet with a larger gravity than Earths gravity what would the graph look like?

I know a graph for the length of the pendulum vs the period squared on Earth would be a positive slope . I also know that doing this on another planet with a higher gravity than Earth , the graph... more
Gravity Math Science Physics

12/11/21

How do I rearrange t^2 = 4pi^2 L/g in y=mx format?

T2 = 4πi2 L/g How do I derive formula to make:L = y T2 = x 4πi2/g = m ?so far I have :L / T2 = g x 4π2Is this correct ?

12/11/21

How would using a mass on the end of a pendulum string 3 times longer impact results?

Another very confusing thing. I know that T2 = 3L which is also T = √3L. that's where my understanding stops :( I don't understand how it will impact my overall results ...A detailed explanation... more

Pendulum Experiment : Why would I use the ‘Period squared’ rather than just the ‘Period’?

For drawing a graph on their relationship to get 'g' why would I use the period squared rather than just the period? What difference does it make and why?A detailed explanation would be very... more

12/11/21

Why is knowing the pendulum length required for one second be important?

Hello!This is related to a pendulum experiment.I know that for 1 period the length would be 0.25mWhat I don't know is why would this information be useful??A detailed explanation would be very... more

12/10/21

Why use the period squared of a pendulum rather than just the period?

Im trying to understand why you use the period squared of a pendulum rather than just the period? and why its useful when drawing a graph? A detailed explanation would be greatly appreciated :")

12/10/21

How to arrange t^2 = 4pi^2 L/g in y=mx format?

How do I derive formula to make L = y , t^2 = x and 4pi^2 L/g = m ? A detailed answer would be very appreciated please and thank you ! :)

11/10/21

Question about feldspar minerals and their specific gravity

Why does the larger cavities of the feldspars have a decrease in specific gravity?
Gravity Physics

06/03/21

Determining horizontal distance travelled

On Jupiter’s largest moon, gravity is 1.4 m/s2. An astronaut, standing on the edge of a 100m high cliff, hits a golf ball, sending it flying at 75 m/s [30° above the horizontal]. Determine the... more

03/22/21

PHYSICS HELP! Force of Gravitational Attraction

Determine the force of gravitational attraction between the earth ( which is 5.98 x 10^24 kg ) and a 70 kg physics student if the student is standing at sea level, a distance of 6.40 x 10^6 meters... more

09/18/19

Is it possible for two black holes to collide perfectly?

If two blackholes with exactly the same mass, are traversing the universe on a perfect collision course with no other gravitational force effecting either black hole, what would happen to both... more

08/03/19

Why shouldn't gravity be a force?

Why shouldn't gravity be a force? I am interested to know the reasons why we shouldn't treat gravity as a force in, for example, General Relativity. Won't we be able to model it accurately by... more

08/03/19

What physical forces pull/press water upwards in vegetation?

Each spring enormous amounts of water rise up in trees and other vegetation. What causes this stream upwards? Edit: I was under the impression that capillary action is a key factor: the original... more

08/02/19

When a ball is tossed straight up, does it experience momentary equilibrium at top of its path?

This question has been asked many times all over the Internet and answers can be found on places such as yahoo and ask.com, but I'm not satisfied with those answers and I don't trust the validity... more
Gravity Physics Forces Water

07/30/19

Sandstone getting soaked with water?

I have seen someone putting a sandstone in water. With only about 10% of the stone sitting in the water. One could see the stone getting soaked with water. So there must be a force, which lets the... more

07/17/19

Does the mass of a star change as it collapses into a black hole?

I know (I think!) that when a really big star collapses on itself it creates a black hole. My question: When a star collapses, is the mass equal to the mass of the star when it's not a black hole?... more

06/25/19

Planet orbits: what's the difference between gravity and centripetal force?

My physics teacher says that centripetal force is caused by gravity. I'm not entirely sure how this works? How can force cause another in space (ie where there's nothing). My astronomy teacher... more
Gravity Physics Forces

06/25/19

Origin of the force of gravity?

Where does exactly gravity come from when bodies exert this force? Does it come from the center of every object or it arises from their surface?

05/06/19

GR and my journey to the centre of the Earth?

>> [General Relativity] basically says that the reason you are sticking to the floor right now is that the shortest distance between today and tomorrow is through the center of the... more

05/06/19

Short of collision, can gravity itself kill you?

Imagine that you are falling into object with huge gravity (i.e. black hole) that does not have any atmosphere. The question is - before you hit the ground, can the gravity itself (which would be... more

04/17/19

How exactly does curved space-time describe the force of gravity?

I understand that people explain (in layman's terms at least) that the presence of mass "warps" space-time geometry, and this causes gravity. I have also of course heard the analogy of a blanket or... more

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