This is advanced hydrology question. please answer correctly

Read the data in graph carefully and answer the following questions.

(1) Calculate the convoluted velocity in m/s for the drilling machine provided that its efficiency is 78% and its formulation value is 60.For c>2.5 what are the possible changes obtained in values (2) Discuss the fluctuations as the function of time in the graph

Data Modes ......... Data SEM Convolved velocity (mm/s) 0.2 0.15 0.1 0.05 0 3-0.05 6 -0.1 5-0.15 -0.2 1200 Convolved velocity (mm/s) 0.2 0.15 0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 1200 mapie 1400 2000 2200 1400 2000 2200 1600 1800 Time (s) 1600 1800 Time (s) 0.4 Data Modes Data SEM Convolved velocity (mm/s) 0.4 0.3 0.2 0.1 0 -0.1 -0.2 Convolved velocity (mm/s) 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 1200 -0.3 -0.4 1200 1400 2000 2200 1400 2000 2200 1600 1800 Time (s) 1600 1800 Time (s) Figure 3.6 Vertical (ton) and transverse (bottom) components of displacement convolved with the instrument response and lowpass Data Modes ......... Data SEM Convolved velocity (mm/s) 0.2 0.15 0.1 0.05 0 3-0.05 6 -0.1 5-0.15 -0.2 1200 Convolved velocity (mm/s) 0.2 0.15 0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 1200 mapie 1400 2000 2200 1400 2000 2200 1600 1800 Time (s) 1600 1800 Time (s) 0.4 Data Modes Data SEM Convolved velocity (mm/s) 0.4 0.3 0.2 0.1 0 -0.1 -0.2 Convolved velocity (mm/s) 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 1200 -0.3 -0.4 1200 1400 2000 2200 1400 2000 2200 1600 1800 Time (s) 1600 1800 Time (s) Figure 3.6 Vertical (ton) and transverse (bottom) components of displacement convolved with the instrument response and lowpass