A grandfather clock pendulum has a length of 1.041 m from where it hangs to its 2.000-kg bob. If the bob is swung all the way to the right at an angle of 20.00 when the clock strikes noon, at what minute after noon will the pendulum have swung 70 times? [note: if 60 seconds have passed, the time would be 12:01 pm, and the minute would be 1; if 120 seconds have passed, the time would be 12:02 pm, and the minute would be 2; etc.]