Саме час запостити якусь цікаву задачу перед всеукром з фізики
Точкове тіло відпускають над похилою площиною без початкової швидкості. Опору повітря нема, відбивання тіла від площини абсолютно пружні. Доведіть, що фокуси усіх параболічних траєкторій утворених між кожними двома послідовними відбиттями лежать на одній прямій.
Саме час запостити якусь цікаву задачу перед всеукром з фізики
Точкове тіло відпускають над похилою площиною без початкової швидкості. Опору повітря нема, відбивання тіла від площини абсолютно пружні. Доведіть, що фокуси усіх параболічних траєкторій утворених між кожними двома послідовними відбиттями лежать на одній прямій.
BY скучні задачі
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He adds: "Telegram has become my primary news source." The channel appears to be part of the broader information war that has developed following Russia's invasion of Ukraine. The Kremlin has paid Russian TikTok influencers to push propaganda, according to a Vice News investigation, while ProPublica found that fake Russian fact check videos had been viewed over a million times on Telegram. On December 23rd, 2020, Pavel Durov posted to his channel that the company would need to start generating revenue. In early 2021, he added that any advertising on the platform would not use user data for targeting, and that it would be focused on “large one-to-many channels.” He pledged that ads would be “non-intrusive” and that most users would simply not notice any change. Telegram has become more interventionist over time, and has steadily increased its efforts to shut down these accounts. But this has also meant that the company has also engaged with lawmakers more generally, although it maintains that it doesn’t do so willingly. For instance, in September 2021, Telegram reportedly blocked a chat bot in support of (Putin critic) Alexei Navalny during Russia’s most recent parliamentary elections. Pavel Durov was quoted at the time saying that the company was obliged to follow a “legitimate” law of the land. He added that as Apple and Google both follow the law, to violate it would give both platforms a reason to boot the messenger from its stores. "Someone posing as a Ukrainian citizen just joins the chat and starts spreading misinformation, or gathers data, like the location of shelters," Tsekhanovska said, noting how false messages have urged Ukrainians to turn off their phones at a specific time of night, citing cybersafety.
from jp
