Question textWater is drained from a vertical tank by opening a valve at the base. Water will drain at a faster rate when the tank is full and slow down as the water level drops. The rate at which the water level drops is given by:[math: dhdt=−kh]where [math: k] is a constant, [math: h] represents the height of the water level, and [math: t] is in minutes.Use [math: k=0.04] and an initial water level of [math: 8m].a) Use Euler's method with a stepsize of 15 minutes to find the water level after 2 hours. Provide the water level to 3 decimal places: Answer 1 Question 2[input] [math: m]. Is this answer sensible? Answer 2 Question 2[select: , Yes, No]b) Use Heun's method with a stepsize of 3 seconds to find the water level after 2 hours. Provide the water level to 3 decimal places: Answer 3 Question 2[input] [math: m]. Is this answer sensible? Answer 4 Question 2[select: , Yes, No]Check Question 2多项填空题