السلام عليكم ورحمة الله وبركاته :
اول مرررة اشاارك فقط كنت اتصفح ولكن جدااا استفدت من اشياء كثييييرة ونسأل الله العظيم ان يوفق القائم على هذا المنتدى الفيزيائي وعلى كل من ساعد في نجاااح هذا المنتدى ...
...... اخواني ابغى حل لهذه الاسئلة واتمنى منكم الشرح بالعربي لتوضيح الصورة اكثر وشرح السؤال نفسه فقد صعب علي كثيييرا ....
an athlete has learned enough physics to know that if he measures from the earth a time interval on a moving spacecraft , what he finds will be greater than what somebody on the spacecraft would measure . he therefore proposes to set a world record for the 100 m dash by having his time taken by an observer on a moving spacecraft . is this a good idea ? s
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two observers , A on earth and B in a spacecraft whose speed is 2 * 10 ^8 m/s , both set their watches to the same time when the shop is abreast of the earth . (a) how much time must elapse by A reckoning before the watches differ by 1 s ? to A , B watch seems to run slow . to B ,does A watch seem to run fast , run slow , or keep the
same time as his own watch ? s
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