A system is made of 3 blocks. Connecting ropes, and a frictionless pulley. An external force is applied downward on block A. The system accelerates at the rate of 2.4 m/s^2. The tension in the rope connecting block B and block C equals 60 N. What is the magnitude of the external force?

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.

I'd go for the one that says that knees are fulcrums, lower legs are levers and the ankles hold loads.hope it ,happy homework/ study/ exam!

Answerthe distance between the two ends of the galaxy is 150,000 light years;