the acceleration produced by a force by a force on a mass 4kg us twice and larger by 6m/s² than the acceleration produced by the same force on a mass 16kg what are the acceleration and the force​

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?

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

When measuring volume, why is it important to use the correct tools and units to attain the greatest accuracy? use specific examples from the lab to support your answer. (5 points)