A cylindrical tank is assembled by welding steel sections circumferentially. Tank diameter is 1.5 m, thickness is 20 mm, and internal pressure is 2.0 MPa. The maximum tensile stress perpendicular to the welds is approximately:
(A) 22 MPa
(B) 29 MPa
(C) 33 MPa
(D) 37 MPa
(D) 37 MPa
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Which wave has the greatest period of oscillation?
1) Wave I 2) Wave II 3) Wave III 4) Wave IV If the waves have the same frequency, which is going by with the greatest speed? 5) Wave I 6) Wave II 7) Wave III 8) Wave IV 9) all have the same speed
If + = and A + B = C, then the vectors and are oriented perpendicular relative to one other
Indicate whether the statement is true or false
If you wish to spear a fish with a regular spear, you should compensate for refraction and throw your spear
A) directly at the sighted fish. B) above the sighted fish. C) below the sighted fish.
The mass of an atom of carbon-12 (Z = 6) is less than the mass of 6 protons and 6 neutrons because of __________
Fill in the blank(s) with correct word