I failed this question on my exam :mad: , would appreshiate someone helping me figuring out a correct answer :smile:
"Suppose a person on planet X, 10 lightyears away from Earth, sends a readiomessage traveling with the speed of light. An astronomer leaves planet X in a spaceship, at the...
HIV is an infectous desease that spreads via sexual contact (as well as other ways). Sexual contact would mean contact between mucous membranes. Isn't the inside of the mouth a mucous membrane as well? Is it simply because there is less friction between the membranes when kissing, than during...
I think chimps are able to recognize themselves in a mirror. I've read of experiments when they paint little dots say over the chimps eye, and looking in the mirror he sees the dot and touches his face where the spot is...
As for animal suicides, I'm less sure of that. I have heared of...
Yes, I think the animal does loose control of its muscles if it's experiencing tonic immobility. I also think animals more conciouly fake to be dead or injured, but then that isn't proper tonic immobility. Says a little about it on this site, under Limbic system and Tonic immobility...
Been reading a little more about this now, didn't realize how much was written about it on the web!
Anyway, in another forum I read a possible biological explination as to why sleep paralysis occurs... There's something similar going on with some animals, called Tonic Immobility, when they...
Oh, I hate that painting (on the site you recommended) with the woman with the creature sitting on her, it seriously gives me the creeps!
Reading that site makes me realize that it's happened to me more than once, just the way it's being described, with the feeling that there's some sort of...
That happened to me once, I was definitely awake but unable to move arms, legs, anything. It only lasted ever so briefly, but it was kind of scary. I've read that this happens to most people, but rarely.
Can anyone explain to me why this happens? Does it have something to do with why you...
the electron, neutrino and positron as well?
Hope I'm asking this at the right place, and that my spelling was ok!
Thanks for any replies!
Linda, Sweden
Did that make any sense at all?
The problem goes, and I do my best to translate from Enlish from Swedish:
The mass of the intermediate vector boson Z is 97,1 times the mass of a protone, whos energy "at rest" is 938 MeV.
a) Calculate the threshold temperature of Z.
b) Calculate how long...
Hi everyone,
really would love it if someone could help me with this. I think it's probably a very easy problem, only I can't seem to find the right formlula, or understand the only one I found...
This is the problem:
I'm in my car, driving towards a crossing with a red traffic light...