A13.7 n force is applied to a cord wrapped around a disk of radius 0.43 m. the disk accelerates uniformly from rest to an angular speed of 30.3 rad/s in 3.43 s. determine the angular acceleration of the disk. hint: the average acceleration is the change in angular speed over time.

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward