Suppose a fast-pitch softball player does a windmill pitch, moving her hand through a circular arc with her arm straight. she releases the ball at a speed of 18.3 m/s (about 40.9 mph). just before the ball leaves her hand, the ball's radial acceleration is 730 m/s2. what is the length of her arm from the pivot point at her shoulder?

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