Which of these is an inherent, unchanging property of any given solid or liquid material

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?