An electrostatic precipitator uses an electric field to remove smoke from the air
a. True
b. False
Indicate whether the statement is true or false
True
You might also like to view...
Astronomers believe that gamma-ray bursters emit radiation equally in all directions
Indicate whether the statement is true or false
An expandable container holds 2.30 mole of He gas with an initial pressure of 770 kPa and an initial volume of 2.10 L. The gas expands isothermally to a final pressure of 350 kPa. How much heat is gained by the gas in this process?
A) 1280 J B) 792 J C) 685 J D) 1370 J E) 1700 J
The force of gravity on a satellite in circular orbit doesn't change its speed because the force is
A) small compared to other forces on it. B) canceled by centrifugal force. C) perpendicular to its direction of motion. D) very weak due to altitude.
Which of the following electron orbital transitions is not allowed?
(a) 3p to 3s (b) 4d to 3p (c) 5d to 4s (d) 5p to 4d