1.Consider a rectangular wastewater treatment cell having a length of 100ft, width of 20ft and depth of 20ft. If the flow into the cell is 50ft^3/min, calculate the residence time of the treatment cell.
2.When the Mars Exploration Rover was fully assembled, its mass was 180 kg. The acceleration due to gravity at the surface of Mars is 3.68 m/s2. a) What was the rover’s weight when it was at sea level on Earth? b) What is the rover’s weight on the surface of Mars?
3.Determine the range from the SV to the REC in GPS; using codes C/A and P and also waves (L1 and L2). How does two of the below from the list have an effect on the codes and waves? 1. Determination of time 2.atmospheric errors 3.correlation of signal at REC 4.what is actually measured at the REC 5.AODC effects on the GPS signal 6.Accuracy