Astructural component in the form of a wide plate is to be fabricated from a steel alloy that has a plane-strain fracture toughness of ( ) and a yield strength of 860 mpa (125,000 psi). the flaw size resolution limit of the flaw detection apparatus is 3.0 mm (0.12 if the design stress is one-half the yield strength and the value of y is 1.0, determine whether a critical flaw for this plate is subject to detection.

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

Could we see a galaxy that is 20 billion light-years away?

If water vapor with the mass of 35.0 grams is cooled and condensed into water in a closed system such as a closed glass jar, what is the mass of the water after the water vapor completely condenses? a) 34.5 grams b) 35.0 grams c) 35.5 grams d) the mass cannot be determined without knowing the volume