An earth fill is constructed across a drainage. Closed contours at the 1000, 1040 and 1080 foot levels define areas of 680,000; 1,200,000; and 1,325,000 square feet respectively. Determine the acre-feet of water that can be impounded between the 1000 and 1080 foot levels by average end area and prismoidal methods.

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2