Which of the following NDI tests cannot detect an internal crack?
(a) Eddy current
(b) Dye penetrant
(c) X-ray
(d) Ultrasonic pulse echo
(b) Dye penetrant
Physics & Space Science
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The heat of fusion for ice at 0 
is 333.7 kJ/kg. What is the energy needed to melt 100 grams of ice at 0.00
A. 39.4 kJ B. 12.7 kJ C. 17.5 kJ D. 25.5 kJ E. 33.4 kJ
Physics & Space Science
How fast would a light beam appear to Einstein if he were traveling in the same direction at 90% of the speed of light?
A) 0 B) c C) 0.1c D) 1.10c E) none of the above
Physics & Space Science
In a collision between two unequal masses, which mass receives a greater magnitude impulse?
A) the smaller mass B) the larger mass C) They receive equal impulses.
Physics & Space Science
______________ is the measure of the ability of an atom to attract shared electrons to itself
Fill in the blank(s) with correct word
Physics & Space Science