Вопрос № 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.

_____ is mounted projectile-firing guns or missile launchers, mobile or stationary, light or heavy.

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

_____ is a small arm operated by a mechanism, able to deliver a rapid and continuous fire of bullets as long as the trigger is pressed.

_____ is a light, gas-operated semiautomatic rifle.