Brainliest for best answer Using Hooke's law, what happens when the displacement is tripled?

A.
The restoring force is tripled.
B.
The restoring force is reduced by one third.
C.
The amplitude is reduced by one third.
D.
The spring constant is tripled.

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.