020 (part 1 of 3) 10.0 points A ski jumper travels down a slope and leaves
the ski track moving in the horizontal direc-
tion with a speed of 28 m/s as in the figure.
The landing incline below her falls off with a
slope of 0 = 40°.
The acceleration of gravity is 9.8 m/s?.

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.