it means that they want attention from you or that it was just an accident
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Bumping into someone can be accidental or intentional. It could be a sign that she is nervous or unsure how to approach you, or on the flip side, she may be trying to get your attention in a playful way. The best way to understand her intentions is to observe her body language and see if she initiates further interaction.
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Friction is created when bumps from two surfaces come into contact, which resists motion and generates heat.
When bumps from two surfaces come into contact, they can create friction, which is a force that resists the motion between the two surfaces. This friction can lead to heat generation and wear on the surfaces.
When an engine bumps into a string of coupled railroad cars on a track, it creates a compression wave. This wave travels through the cars and causes them to move as the energy is transferred from one car to the next until the wave dissipates.
Speed bumps were invented to reduce vehicle speeds in areas where safety is a concern, such as near schools, residential neighborhoods, and parking lots. They help to slow down vehicles and prevent accidents caused by speeding drivers.