_____ is a shoulder firearm with spiral grooves cut in the inner surface of the gun barrel to give t...: ответ на тест 230642 - Английский язык

_____ is a tube artillery piece characterized by shorter range, shorter barrel, smaller muzzle velocity, higher trajectory.

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When 1__________________ electrons suddenly strike a metallic 2_______________ they give up their kinetic 3_________________ to the electrons and atoms which they strike. Some of the bombarding electrons collide directly with free 4_________________ on the metal surface and may knock them out from the surface. The electrons freed in this way are known as secondary emission electrons, since the primary electrons from some other source must be available to bombard the secondary electron-emitting surface.

_____ are a firearm designed to be held in one or both hands while being fired.

_____ is a light, gas-operated semiautomatic rifle.

_____ is the forward section of a self-propelled missile, bomb, torpedo, or the like, containing the explosive, chemical, or atomic charge.

_____ is a structural device designed to support and hold a missile in position for firing.