physics professor les on a "bed of classroom demonstration, bed consists of a large number of evenly spaced, relatively sharp nails mounted in a board so that the points extend vertically outward from the board. While the professor is lying down, approximately 1950 nails make contact with his body. The 7. What is the average force exerted by each nail on the professor's body? A) 0.201 N B) 0.398 N c) 1.42 N D) 0.809 N E) 142N 8. If the area of contact at the head of each nail is 1.26 x 10 m, what is the average pressure at each contact? A) 1.58 x 10 Pa B) 1.27x 10 Pa c) 2.40 x 10 Pa D) 4.82 x 10 Pa E) 3.16 x 10 Pa

physics professor les on a "bed of classroom demonstration, bed consists of a large number of evenly spaced, relatively sharp nails mounted in a board so that the points extend vertically outward from the board. While the professor is lying down, approximately 1950 nails make contact with his body. The 7. What is the average force exerted by each nail on the professor's body? A) 0.201 N B) 0.398 N c) 1.42 N D) 0.809 N E) 142N 8. If the area of contact at the head of each nail is 1.26 x 10 m, what is the average pressure at each contact? A) 1.58 x 10 Pa B) 1.27x 10 Pa c) 2.40 x 10 Pa D) 4.82 x 10 Pa E) 3.16 x 10 Pa

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter9: Statics And Torque

Section: Chapter Questions

Problem 17PE: To get up on the roof, a person (mass 70.0 kg) places a 6.00-m aluminum ladder (mass 10.0 kg)...

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