A 0.87-kg block is hung from and stretches a spring that is attached to the ceiling. A second block is attached to the first one, and the amount that the spring stretches from its unstretched length triples. What is the mass of the second block? A small ball is attached to one end of a spring that has an unstrained length of 0.247 m. The spring is held by the other end, and the ball is whirled around in a horizontal circle at a speed of 3.06 m/s. The spring remains nearly parallel to the ground during the motion and is observed to stretch by 0.0127 m. By how much would the spring stretch if it were attached to the ceiling and the ball allowed to hang straight down, motionless?
A 0.87-kg block is hung from and stretches a spring that is attached to the ceiling. A second block is attached to the first one, and the amount that the spring stretches from its unstretched length triples. What is the mass of the second block?
A small ball is attached to one end of a spring that has an unstrained length of 0.247 m. The spring is held by the other end, and the ball is whirled around in a horizontal circle at a speed of 3.06 m/s. The spring remains nearly parallel to the ground during the motion and is observed to stretch by 0.0127 m. By how much would the spring stretch if it were attached to the ceiling and the ball allowed to hang straight down, motionless?

![**Text:**
A small ball is attached to one end of a spring that has an unstrained length of 0.247 m. The spring is held by the other end, and the ball is whirled around in a horizontal circle at a speed of 3.06 m/s. The spring remains nearly parallel to the ground during the motion and is observed to stretch by 0.0127 m. By how much would the spring stretch if it were attached to the ceiling and the ball allowed to hang straight down, motionless?
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