The figure shows a conical pendulum, in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at a constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.040kg, the string has length L0.90 m and negligible mass and the bob follows a circular path of the circumference 0.94 m. What are (a) the tension in the string and (b) the period of the motion?