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Crash boxes are used to recreate the sounds of a crash, collision or glass breakage in theatre. To recreate the sound effects, crash boxes are dropped from a height backstage. They can also be shaken to create a gentler sound effect. A crash box is generally preferred to a recorded sound effect because it is perceived as more realistic.
The sound of the bat hitting the ball represents the loss of energy. A "perfectly inelastic" collision (also called a "perfectly plastic" collision) is a limiting case of inelastic collision in which the two bodies coalesce after impact. An example of such a collision is a car crash, as cars crumple inward when crashing, rather than bouncing ...
Crash box (vehicle collision), an energy absorbing device installed in order to reduce repair costs in low-speed vehicle collisions; Crash box (stagecraft), a stagecraft device which reproduces a crash or collision sound effect; Crash gearbox, non-synchromesh automobile transmission; Crashbox, an American-Canadian educational children's ...
Collision theory can be applied to reactions in solution; in that case, the solvent cage has an effect on the reactant molecules, and several collisions can take place in a single encounter, which leads to predicted preexponential factors being too large. ρ values greater than unity can be attributed to favorable entropic contributions.
A traffic collision in Japan, 2007 The aftermath of an accident involving a jackknifing truck, Mozambique, Africa. A traffic collision, also known as a motor vehicle collision, or car crash, occurs when a vehicle collides with another vehicle, pedestrian, animal, road debris, or other moving or stationary obstruction, such as a tree, pole or building.
Other types of collision may occur. Rollovers are not very common, but lead to greater rates of severe injury and death. Some of these are secondary events that occur after a collision with a roadway departure crash or a collision with another vehicle. If several vehicles are involved, the term 'serial crash' may be used.
Collision avoidance by braking is appropriate at low vehicle speeds (e.g. below 50 km/h (31 mph)), while collision avoidance by steering may be more appropriate at higher vehicle speeds if lanes are clear. [10] Cars with collision avoidance may also be equipped with adaptive cruise control, using the same forward-looking sensors.