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By Spate and Bateson

;Messerschmitt Me.163 Komet [Aircraft Profile 225] КНИГИ ;ВОЕННАЯ ИСТОРИЯ Название:Messerschmitt Me.163 Komet Автор: Spate and Bateson Серия: airplane Profile 225 Издательство: Profile courses Ltd Год издания: 1971 Страниц:25 Формат: PDF в rarЯзык: английский Размер: 25.32 Мб Для сайта: Мир книгИстребитель Ме.163 создавался для борьбы с бомбардировщиками союзников во время Второй Мировой, но недостатки самого самолета и недостаточное количество новых машин не смогли повлиять на ход боевых действий zero

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Messerschmitt Me.163 Komet

;Messerschmitt Me. 163 Komet [Aircraft Profile 225] КНИГИ ;ВОЕННАЯ ИСТОРИЯ Название:Messerschmitt Me. 163 Komet Автор: Spate and Bateson Серия: plane Profile 225 Издательство: Profile guides Ltd Год издания: 1971 Страниц:25 Формат: PDF в rarЯзык: английский Размер: 25. 32 Мб Для сайта: Мир книгИстребитель Ме.

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Think of two rubber balls colliding). Both total energy T (t+ 0 ) T (t+ 0 ) = 1 2 + 2 m1 v1 (t+ 0 ) + m2 v2 (t0 ) 2 and momentum p(t+ 0 ) + + p(t+ 0 ) = m1 v1 (t0 ) + m2 v2 (t0 ) + − are conserved during the collision. 3 DYNAMICS OF A SYSTEM OF PARTICLES 45 with M = m1 + m2 being the total system mass. e. think of two chunks of clay colliding). In this case the total energy T (t+ 0 ) after the collision is given by T (t+ 0 ) = 1 M v2 2 where v is the speed of the joined particles after the collision.

Rocket speed up) it will cause. 5 Note that the higher specific impulse propulsion methods, such as the ion or arcjet thrusters, typically produce only a very small thrust. Such modes of propulsion are able to achieve a desired ∆v with a much smaller amount of fuel mass ∆m than a propulsion method with a lower Isp . However, due to the small amount of thrust produced, these efficient propulsion methods will take a much longer time to produce this desired velocity change. 9: Assume we are trying to launch an initially at rest sounding rocket vertically from the Earth’s surface and it is to only fly several miles high.

73) where dF is the total force acting on dm. 74) To express the volume integral over the body B let us use the shorthand notation = B . 75) B where the internal forces again cancel because of Newton’s third law. 77) B where r = R − Rc is again the internal position vector of dm relative to Rc . Therefore Eq. 79) Rdm B After twice differentiating Eq. 80) B After substituting Eq. 75) we obtain the equivalent super particle theorem for a continuous body. 81) Kinetic Energy Let the inertial vector R define the position of the infinitesimal mass element dm.

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