In order for organisms to stay alive and continue their species, they must overcome many challenges. which of these is not one of the three challenges of life? question 1 options: getting energy reproducing regenerating staying healthy

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Explain what happens at the saturation point when adding salt to water at room temperature.

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.