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What is the minimum energy necessary (in kJ) to compress 1.0 kg of saturated water vapor at 1 bar to a pressure of 60 bar in a perfectly insulated vessel?
If the BOD5 of a municipal wastewater is 310 mg/L and the BOD U is 340 mg/L, determine the BOD reaction rate constant (base e). What would be the 3 day 30°C BOD Assume, temperature coefficient = 1.047.
Provide a comparative analysis of the types of safeguards would you suggest for the company's information system.
above a peninsula of land. the length of the box is 25 km, its width is 80 km, and a radiation inversion restricts mixing to 25 m. Wind is blowing clean air into the long dimention of the box at 0.8 m/s.
The position of a particle P moving in the horizental plane is described by r(t)= (5t^2 i +2te^0.1t j) m. Find the magnitude of the particle's position, velocity, and acceleration at time t=2 sec.
After 5 seconds the force is continuous at the 50 N level. Determine the velocity of the cart at t=8 seconds and calculate t at which the cart velocity is zero.
Determine the settlements when a stress of 100 kPa is applied by the building over an area of 10m × 5 m on the soil surface.
Air can be assumed as a di-atomic ideal gas. Find the final temperature and the amount of work ( in kW) required for air compression at a rate of 100 mol/s , from an initial condition of 1 bar an 25 C to 10 bar; for the following ways.
For each of the horizons, provide a description of the soil characteristics and briefly describe the environment where you would expect to find the horizon?
A piston-cylinder device contains 0.2kg of water initially at 800 kPa and 0.06m^3. Now 200 kJ of heat is transferred to the water while its pressure is held constant. Determine the final temperature of the water.
How does aggregate size influence the coefficient of permeability of concrete? List other factors that determine the permeability of concrete in a structure.
The rigid bar abcd is supported by a pin at B and restrained by identical steel bars at C and D, each of area 250mm 2 . if the temperature is increased by 8 0 C, find out the force P that will cause the bar at c to be stress-free.
A vertical gate keeps water from flowing in a triangular irrigation channel. The channel has a 4-m top width and a 3-m depth. If the channel is full, what is the magnitude of the hydrostatic force on the triangular gate and its location
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