A cylindrical tank is assembled by welding steel sections circum-ferentially. Tank diameter is 1.5 m, thickness is 20 mm, and internal pres-sure is 2.0 MPa. The maximum shear stress in the cylindrical part of the tank is approximately:
(A) 17 MPa
(B) 26 MPa
(C) 34 MPa
(D) 38 MPa
(D) 38 MPa
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Planets do not move on a straight line. According to Newton's First Law of Motion, that means that there must be an outside ________ acting on them
Fill in the blank(s) with correct word
If the intensity level of one trombone is 70 dB and that of one cornet is 65 dB, which is louder: 76 trombones or 110 cornets?
What will be an ideal response?
A satellite with a rest mass of 200 kg and a speed of 0.800c and a second satellite with a rest mass of 100 kg and a speed of 0.600c are traveling toward each other in deep space
The satellites collide and somehow manage to stick together. What is the rest mass of the combined object after the collision? A) 300 kg B) 389 kg C) 416 kg D) 457 kg E) 587 kg
When one observes a scratch on the bottom of a block of clear plastic, the scratch appears to be 2.5 cm below the top surface as viewed from above. The actual thickness of the plastic block is 3.0 cm. The index of refraction of the block is ________.
Fill in the blank(s) with the appropriate word(s).