How is the magnitude of the net force acting on an object determined?

Which feature of a heating curve indicates a change ofn state

What is a good example of instantaneous speed

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?