Cinema building was built v1903 year. Then on the street in Kiev Nikolaev (now - street name architect Gorodetsky) by architect VP Bradtmana was erected circus "Hippo-Palace» («Hippo-palace»). He belonged to the famous all over Russia Krutikova horse trainer. At that time it was the only one in Europe, two-storey circus that could seat 2,000 spectators at the same time. In addition, the circus building has unique acoustics and is often used for recitals and concerts. On the stage were great opera singer Fyodor Chaliapin, Leonid Sobinov and Titta Ruffo, and Vladimir Mayakovsky iAleksandr Kuprin.
April 20, 1918 this building was held the election of Hetman Pavlo Skoropadsky.
In late September 1941 the building was blown up by the retreating circus Soviet troops, and in 1945razobrano until the foundation, as the ruins were not subject to restoration.
May 26, 1964 the opening of the cinema "Ukraine" - the first large-format theater in Kiev. The authors of the project were the architects of the cinema building LV Dobrovolsky, A. Ya Kosenko, engineers MB Greenwald and FM Beilin. He has two rooms: large and small for 700 220 seats, one above the other. The first was designed to demonstrate large-format, widescreen and normal films, and the second - for widescreen and normal. From the foyer of the second floor and two streams for 3-4 minutes take place in the auditorium. Box office lobby isolated from the main entrance, which allows not to create a crossing streams spectators.
In September 1965, at the cinema premiere of the film "Shadows of Forgotten Ancestors", which Vasyl Stus, Vyacheslav Chornovil and Ivan Dziuba came on the scene with a public protest against the policy of the USSR, to make public information about the secret arrests of Ukrainian intellectuals.
Modern cinema was opened after reconstruction February 6, 2001.
April 20, 1918 this building was held the election of Hetman Pavlo Skoropadsky.
In late September 1941 the building was blown up by the retreating circus Soviet troops, and in 1945razobrano until the foundation, as the ruins were not subject to restoration.
May 26, 1964 the opening of the cinema "Ukraine" - the first large-format theater in Kiev. The authors of the project were the architects of the cinema building LV Dobrovolsky, A. Ya Kosenko, engineers MB Greenwald and FM Beilin. He has two rooms: large and small for 700 220 seats, one above the other. The first was designed to demonstrate large-format, widescreen and normal films, and the second - for widescreen and normal. From the foyer of the second floor and two streams for 3-4 minutes take place in the auditorium. Box office lobby isolated from the main entrance, which allows not to create a crossing streams spectators.
In September 1965, at the cinema premiere of the film "Shadows of Forgotten Ancestors", which Vasyl Stus, Vyacheslav Chornovil and Ivan Dziuba came on the scene with a public protest against the policy of the USSR, to make public information about the secret arrests of Ukrainian intellectuals.
Modern cinema was opened after reconstruction February 6, 2001.
Дано:
T = 10000000 К = 10⁷ К
R = 10 км
L☉ = 1
T☉ = 6000 К = 6×10³ К
R☉ = 690000 км = 6,9×10⁵ км
Найти:
L - ?
Приняв для Солнца светимость L☉ = 1, T☉ = 6000 К и R☉ = 690000 км можем записать в общем виде для звезды и Солнца:
L = 4πR²×σ×T⁴
L☉ = 4πR☉²×σ×T⁴
Если мы разделив уравнения друг на друга, получим:
L/L☉ = 4πR²×σ×T⁴/4πR☉²×σ×T⁴ , следовательно
L/L☉ = (R/R☉)²×(T/T☉)⁴
Если Светимость Солнца равна 1, то получим:
L = (R/R☉)²×(T/T☉)⁴
Теперь решаем:
L = (10 км/6,9×10⁵ км)² × (10⁷ К/6×10³ К)⁴ = (1/6,9×10⁴)² × (10⁴/6)⁴ = (1/6,9²×10⁸)×(10¹⁶/1296) = 1/6,9² × 10⁸/1296 = 1/47,61 × 10⁸/1296 = 1/4761/100 × 10⁸/1296 = 100/4761 × 10⁸/1296 = 25/4761 × 10⁸/324 = 25×10⁸/1542564 ≈ 1620,68 ≈ 1,62068×10³ ≈ 1,62×10³
ответ: L = 1,62×10³