please write the answer in significant figures and scientific notations as its instructed thanks!

Question 14 (1 point) A travelling wave moving along a string has an equation of y(x,t) = (5.000x10^-3) cos ( (2.81x10^3)x -(7.0600x10^2)t ) Assuming all parameters are in SI units, calculate how far the wave propagates along the x-axis in (1.0000x10^2) seconds. Calculate your answer in metres to 3.0 significant figures Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer Question 15 (1 point) A mass of (5.5x10^2) g is hanging underneath a spring which has an unknown spring constant. The period of oscillation is (1.50x10^0) seconds. Find the spring constant in N/m. Give your answer to 2 s.f. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10