What intermolecular forces do all polar molecules have?

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Mga halaman/punong ornamental na di namumulaklak

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?