Because the strength of the sun’s rays in space and in the Earth’s atmosphere does not deviate much it is often referred to as the __________.
Fill in the blank(s) with the appropriate word(s).
solar constant
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El Programa de Aprendizaje para Jóvenes está diseñado para alumnos de _____.
a. 11vo grado b. 7mo grado y 8vo grado c. universidad d. escuela primaria
There are several different types of spark plug thread inserts. While having a discussion, Technician A says that when a spark plug uses a sealing washer, the insert is plated with a copper flash. Technician B says that when a spark plug in a cast iron head has a tapered seat, silver-plated inserts are used. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
A 3000 pound vehicle is calculated to have a kinetic energy of 90,000 ft-lb at 28 mph. If the speed of the vehicle remains the same and the weight is doubled to 6000 pounds, what will happen to the calculated kinetic energy?
A) It will increase by the square (× 4), to 360,000 ft-lb B) It will increase proportionally (× 2), to 180,000 ft-lb C) It will remain the same D) None of these is correct
PTAC unit performance is certified by
A) Air-Conditioning, Heating and Refrigeration Institute, AHRI B) American Society of Testing and Materials Engineers, ASTME C) Environmental Protection Agency, EPA D) Underwriters Laboratory, UL