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Консультация № 194268
21.12.2018, 22:42
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Здравствуйте, уважаемые эксперты! Прошу вас решить данную задачу:
Колебание источника задано уравнением ξ(t) = 20cos(ωt + π/3), мм. Вычислите отношение смещений в момент времени Т/6 (Т - период колебаний источника) двух точек М и Р, расстояние между которыми 0,6λ, а расстояние точки М от источника равно 0,1λ (λ - длина волны).
Колебание источника задано уравнением ξ(t) = 20cos(ωt + π/3), мм. Вычислите отношение смещений в момент времени Т/6 (Т - период колебаний источника) двух точек М и Р, расстояние между которыми 0,6λ, а расстояние точки М от источника равно 0,1λ (λ - длина волны).
Обсуждение
24.12.2018, 23:02
общий
это ответ
Здравствуйте, zhiv!
Для точки
находящейся на расстоянии 
в положительном направлении от источника, смещение в момент времени 
составляет
(м).
Для точки
находящейся на расстоянии 
в положительном направлении от источника, смещение в тот же момент времени составляет
(м).
Значит, искомое отношение смещений составляет
Для точки
находящейся на расстоянии в положительном направлении от источника, смещение в момент времени составляет (м).Для точки
находящейся на расстоянии в положительном направлении от источника, смещение в тот же момент времени составляет (м).Значит, искомое отношение смещений составляет
Об авторе:
Facta loquuntur.
Facta loquuntur.
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