Liquid hazardous wastes are blended in a cstr to maintain a minimum energy content before burning them in a hazardous waste incinerator. the energy content of the waste currently being fed is 8.0 mj/kg (mega-joules/kilogram). a new waste is injected in the flow line into the cstr. it has an energy content of 10.0 mj/kg. if the flow rate into and out of the 0.20 m3cstr is 4.0 l/s, how long will it take the effluent from the cstr to reach an energy content of 9 mj/kg?

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?