Do you need some practice with force diagrams for your introductory (or advanced) physics course? Here are three questions (and the last one is awesome) about the motion of a bike as it is pulled.

This is a cooler physics problem than I initially realized. It goes something like this. A block has a mass of 1 kg and is placed on a vertical wall such that the coefficient of static friction is 0.5 ...

THIS is a reprint in book-form, with additions, of a series of articles which appeared in Engineering in the autumn of 1906. Those who have had any experience of such work will know how tedious is the ...

The strong nuclear force may abruptly loosen its grip on the fundamental particles that make up matter at a special “critical ...