Random Question (1 Viewer)

[ronnknee]

This is from the Jarcaranda Physics textbook.

1. a) Upon what variables does the force of gravity between two masses depend?
Distance of two masses and the mass of two masses

1. b) Time is not one of the variables, implying that this force acts instantaneously throughout space, faster even than light. Does this seem reasonable to you? Explain your answer.

Obviously the answer is no, but why?

 

[twilight1412]

ok i'll give you the short explaination =)
if it doesnt make sense or you need more? ....... i'll leave it at that =)

1. two variables are mass and distance between the center of masses of the 2 objects IT IS IMPORTANT YOU SAY BETWEEN THE CENTER OF MASS!!! OR YOU WILL GET 0

2. HHEEEEEELLLLLLLLLLLL NO because one of einstein's postulates states that the fastest speed of interaction is the speed of light =)
so your answer is ... because einstein said so =)

 

[ronnknee]

Hahaha okay, that's I was thinking but wasn't sure. Thanks for your input =)

 

[Ozza]

This is from the Jarcaranda Physics textbook.

1. a) Upon what variables does the force of gravity between two masses depend?
Distance of two masses and the mass of two masses

1. b) Time is not one of the variables, implying that this force acts instantaneously throughout space, faster even than light. Does this seem reasonable to you? Explain your answer.

Obviously the answer is no, but why?

a) From the equation F= (G x m1 x m2)/ d^2
Therefore, it depends on the mass of the two masses and the dist. between the two masses.

b) No, special relativity, that's why! (i.e. because Einstein said so ) Lol, nah, basically the speed of light, c, is the universal constant, time gets dilated at high velocities.

 

[kony]

gravitons

 

[appleide]

It's not in the syllabus.

 

[twilight1412]

gravitons are in quanta to quarks =P