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Dobrý deň, neviem si dať rady s touto úlohou, za pomoc budem veľmi vďačná.
Dve rovinné zrkadla zvierajú uhol 70stupnov. Lúč dopadá v uhle 40 stupňov
Harmonické kmitanic oscilátora je opísané rovnicou y = 10sin pi*tcm Akú dráhu prejde závažie zavesené na pružine za 10 sekúnd pohybu?
Najtenšia struna gitary vydáva tón e' s frekvenciou približne 330 Hz. Napište rovnicu harmonického kmitania bodu v strede gitary, ak sme ho vychýlili o 2 mm. Za začiatočný okamih zvolte prechod bodu…
Dobrý deň, neviem si dať rady s touto úlohou, za pomoc budem veľmi vďačná. Dve rovinné zrkadla zvierajú uhol 70stupnov. Lúč dopadá v uhle 50 stupňov. Treba to narysovat.
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