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(a) Number (b) Number (c) Number i i Units Units Units < <

(a) Number (b) Number (c) Number i i Units Units Units < <

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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In 13.9 s, 278 bullets strike and embed themselves in a wall. The bullets strike the wall perpendicularly. Each bullet has a mass of 5 x 10-3 kg and a speed of 977 m/s. (a) What is the average change in momentum per second for the bullets? (b) Determine the average force exerted on the wall. (c) Assuming the bullets are spread out over an area of 3.17 x 104 m² obtain the average pressure they exert on this region of the wall. (a) Number i (b) Number i (c) Number i Units Units Units
Transcribed Image Text:In 13.9 s, 278 bullets strike and embed themselves in a wall. The bullets strike the wall perpendicularly. Each bullet has a mass of 5 x 10-3 kg and a speed of 977 m/s. (a) What is the average change in momentum per second for the bullets? (b) Determine the average force exerted on the wall. (c) Assuming the bullets are spread out over an area of 3.17 x 104 m² obtain the average pressure they exert on this region of the wall. (a) Number i (b) Number i (c) Number i Units Units Units
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