A copper tube with wall thickness of 8 mm must carry an axial tensile force of 175 kN. The allowable tensile stress is 90 MPa. The minimum required outer diameter is approximately:
(A) 60 mm
(B) 72 mm
(C) 85 mm
(D) 93 mm
(C) 85 mm
Physics & Space Science
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The last page of a book is numbered 764 the book is 3.0 cm thick not including its covers. What is the average thickness in centimeters of a page in the book rounded to the proper number of significant figures
A) 0.0039 cm
B) 0.072 cm
C) 0.0079 cm
D) 0.00393 cm
E) 0.00785 cm
Physics & Space Science
The globular star clusters are the most obvious examples of Population II around us
Indicate whether the statement is true or false
Physics & Space Science
The major moons of ______________ were named after literary characters
Fill in the blank(s) with correct word
Physics & Space Science
Open clusters and young stars are generally found only in the disk of the galaxy and not in the halo
Indicate whether the statement is true or false
Physics & Space Science