Suppose you throw some object near the surface of the earth. If the only significant force on the object is the constant downward gravitational force, we call this "projectile motion." Yes, that ...
The USS Zumwalt (DDG-1000) is the US Navy’s latest warship, commissioned just last month—and it comes with the biggest guns the Navy has deployed since the twilight of the battleships. But it turns ...
Figure 1: Formation of Copernicus crater by a low-speed impact. Figure 3: Impact velocity distribution on the Moon. The planetary geology community has not previously considered the possibility that ...
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