HSC Physics Predictions / Thoughts (3 Viewers)

black.mamba

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i said the same but others said special relativity doesn't apply when gravity is involved i think?
yeah
"Special relativity applies to all physical phenomena in the absence of gravity" according to wikipedia
would non-relativistic speeds get the mark?
 

Fabrizio

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For the last question was it a) 1/2 for q1 and 3/4 for q2 and then b) square root of 6
 

NoUsername

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Also what were the limitations of using special relativity? I said since it was moving slowly, it didn't really effect it and that it was non-inertial. I think the former's a bit of a stretch though
 

Fabrizio

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Also what were the limitations of using special relativity? I said since it was moving slowly, it didn't really effect it and that it was non-inertial. I think the former's a bit of a stretch though
2nd one is 100% right. First one is a maybe depending on how hard they mark
 

Speed’o’sound Sonic

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Also what were the limitations of using special relativity? I said since it was moving slowly, it didn't really effect it and that it was non-inertial. I think the former's a bit of a stretch though
Yeah, non inertial was one and I also said the effect would be negligible since it isn’t travelling at relativistic speeds hence would be ineffective in analysis of motion
 

NoUsername

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Have we agreed on anything for the Hertsprung-Russel diagram? I think I said age, because colour and luminosity are the values on the axis, so there's variation and there's stars with the same colour but different luminosity, so their surface area, and resultantly mass, must be different?
 

Speed’o’sound Sonic

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Have we agreed on anything for the Hertsprung-Russel diagram? I think I said age, because colour and luminosity are the values on the axis, so there's variation and there's stars with the same colour but different luminosity, so their surface area, and resultantly mass, must be different?
I said mass. Didn’t have much reasoning though just a guess between mass and age 😂
 

Althacommie

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Have we agreed on anything for the Hertsprung-Russel diagram? I think I said age, because colour and luminosity are the values on the axis, so there's variation and there's stars with the same colour but different luminosity, so their surface area, and resultantly mass, must be different?
It's age because the question established that all the stars were X amount of light years away.
 

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