if the f/m of a 0.4380 m3/s activated sludge plant is 0.200 mg/mg ? d, the influent bod5 after primary settling is 150 mg/l and the mlvss is 2,200 mg/l, what is the volume of the aeration tank?

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

b.transmitters send radio waves, and receivers capture radio waves.

they should be similar or the same