Arizona State University Associate Professor Wenlong Zhang and his team have developed a first-of-its kind quadrotor drone with both an inflatable frame to enable…
Collisions with glass windows on buildings, transportation shelters, noise barriers and fences are a major source of bird mortality. Public awareness of bird-window collisions has grown in recent years, thanks to surveys for dead birds…
Dennis Thompson
THURSDAY, Nov. 3, 2022 (HealthDay News) -- Motorists are more likely to plow into a deer on U.S. highways after the annual "fall back" end of daylight saving time (DST), a new study…
There are a couple of things to notice. First, after the collision DART is moving backwards, because it bounced. Since velocity is a vector, that means that it will have a negative momentum in this one-dimensional example.Second, the…
So, here’s the obvious next question: Is kinetic energy also conserved, just like momentum is conserved? The answer is: sometimes. For some collisions that we call "elastic collisions," both kinetic energy and momentum are conserved. In…