The starship enterprise speeds past an asteroid at 0.920c. if an observer on the asteroid sees 10.0 seconds pass on her watch, how long would that time interval be if measured by an observer on the enterprise?

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.)