A thin-walled cylindrical tank, under internal pressure p, is com-pressed by a force F 5 75 kN. Cylinder diameter is d 5 90 mm and wall thickness t 5 5.5 mm. Allowable normal stress is 110 MPa and allowable shear stress is 60 MPa. The maximum allowable internal pressure pmax is approximately:
(A) 5 MPa
(B) 10 MPa
(C) 13 MPa
(D) 17 MPa
(C) 13 MPa
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A 4.00 kg ball is traveling at 3.00 m/s and strikes a wall. The 4.00 kg ball bounces off the wall with a velocity of 4.0 m/s. If the contact with the wall by the ball lasts for 0.10 seconds, then the average force on the ball is
A. 230 N. B. 280 N. C. 320 N. D. 360 N. E. 400 N.
A 150-W light bulb is designed to operate at 110 V dc. How much current does it draw?
A) 15 A B) 1.4 A C) 0.73 A D) 2.0 A
Absolute visual magnitude is calculated at a standard distance of ____
a. one light year b. one parsec c. 10 light years d. 10 parsecs e. 100 parsecs
A 2.00-g bullet traveling at 700 m/s hits and becomes embedded in a stationary 5.00-kg wood block. What is the speed of the block immediately after the bullet has stopped moving relative to the block?
What will be an ideal response?