Abaseball has a mass of 145 g. a bat exerts a force of 18,400 n on the ball. what is the acceleration of the ball? 1.27 x 102 m/s squared

An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 103 mm. the electric potential of the inner conductor with respect to the outer conductor is - 700 v (k = 1/4πε 0 = 8.99 × 109 n · m2/c2) the energy stored in a 1.0-m length of this capacitor is closest to