4. for the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotope: you have a nitrogen isotope with a mass number of 15. what is the atomic number? 15 7 8 14

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)