What is the weight percent carbon in a 1040 steel?

(a) 10 %
(b) 4 %
(c) 0.40 %
(d) 1 %


(c) 0.40 %

Physics & Space Science

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A 200 ft. high by 60 ft. wide building is on fire, and one of its walls is at 1500ºF. Air at 100ºF and 40% relative humidity is near the building as shown in the figure. Estimate the net heat transfer to the air from this burning wall if the wall’s emissivity is 0.85.

Physics & Space Science

What is the difference between a concentration gradient and a density gradient?

What will be an ideal response?

Physics & Space Science

Escape Speed: The value of g at the surface of the spherical Asteroid X is 0.0060 m/s2 and the escape velocity is 10.1 m/s. What is the mass of this asteroid? (G = 6.67 × 10-11 N ? m2/kg2)

A. 2.3 × 1016 kg B. 3.5 × 1012 kg C. 6.5 × 1015 kg D. 4.9 × 1014 kg E. 6.7 × 1013 kg

Physics & Space Science

The proper abbreviation for ‘kilohertz' is __________

Fill in the blank(s) with correct word

Physics & Space Science