Raketa prolazi pored svemirske postaje brzinom v=0,6c u smjeru paralelnom duljini rakete. Dežurni fizičar u postaji izmjeri da je duljina rakete 30 m. Koliku duljinu rakete mjeri putnik u raketi?
Teorija relativnosti - zadaci

Quiz
•
Physics
•
12th Grade
•
Easy
Lucija Matkovic
Used 17+ times
FREE Resource
6 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Astronaut putuje raketom koja se giba jednoliko po pravcu brzinom v=0,8c u odnosu na Zemlju. On je u svojem sustavu izmjerio da njegovo putovanje traje 3 godine. Koliko je vremena putovanje trajalo za promatrača na Zemlji?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Štap je u sustavu mirovanja dugačak 4,2 m. Promatrač u odnosu na kojega se štap giba jednoliko duž svoje uzdužne osi mjeri da je duljina štapa 1,4 m. Kolikom se brzinom štap giba u odnosu na promatrača?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Izračunaj intenzitet elektromagnetskog vala s amplitudom magnetskog polja
i amplitudom električnog polja 125 V/m. Apsolutna magnetska permeabilnost iznosi
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Snaga kojom Sunce zrači iznosi
Za koliko će se vremena masa Sunca smanjiti za 2% uz pretpostavku da će snaga zračenja Sunca ostati čitavo vrijeme stalna? Masa Sunca iznosi
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Putnik u svemirskome brodu izmjeri da trajanje neke pojave iznosi 1 s, a promatrač na Zemlji izmjeri da trajanje te pojave iznosi 4 s. Kolika je brzina kojom se svemirski brod giba u odnosu na Zemlju? Brzina svjetlosti u vakuumu je c.
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