For many, the crunch is viewed as an unavoidable staple of core training. The exercise has long stood as a gold standard for every beginner trying to get ripped and strong abs. But as our knowledge ...

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 oceanic mesoscale, 10–100 km, is the equivalent of the atmospheric storm scale. It is generally considered to be the most energetic scale, and it is where fronts between water masses become ...

A boy kicks a ball horizontally over the edge of a cliff with a speed of \(6ms^{-1}\) as shown in the diagram. The ball hits the surface of the water \(3s\) later. (a) Calculate the vertical speed of ...