The magnitude r, measured on the richter scale, of an earthquake of intensity i is defined as requalslog startfraction upper i over upper i 0 endfraction , where upper i 0 is a minimum intensity used for comparison. if the intensity of an earthquake was 10 superscript 6.08times upper i0, what was the magnitude on the richter scale?

Will you chech and finish these for me, because i am stumped with them.

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

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.)