The figure shows an approximate plot of stress versus strain for a spider-web thread, out to the point of breaking at a strain of 2.20. The vertical axis scale is set by a = 0.160 GN/m²,b = 0.500 GN/m2, and c = 0.72O GN/m². Assume that the thread has an initial length of 0.700 cm, an initial cross-sectional area of 7.00 × 10-12 m², and (during stretching) a constant volume. The strain on the thread is the ratio of the change in the thread's length to that initial length, and the stress on the thread is the ratio of the collision force to that initial cross-sectional area. Assume also that when the single thread snares a flying insect, the insect's kinetic energy is transferred to the stretching of the thread. (a) How much kinetic energy would put the thread on the verge of breaking? What is the kinetic energy of (b) a fruit fly of mass 5.50 mg and speed 2.20 m/s and (c) a bumble bee of mass 0.440 g and speed 0.840 m/s? Would (d) the fruit fly and (e) the bumble bee break the thread? 0.900 1.20 2.20 Strain Stress (GN/m2)
The figure shows an approximate plot of stress versus strain for a spider-web thread, out to the point of breaking at a strain of 2.20. The vertical axis scale is set by a = 0.160 GN/m²,b = 0.500 GN/m2, and c = 0.72O GN/m². Assume that the thread has an initial length of 0.700 cm, an initial cross-sectional area of 7.00 × 10-12 m², and (during stretching) a constant volume. The strain on the thread is the ratio of the change in the thread's length to that initial length, and the stress on the thread is the ratio of the collision force to that initial cross-sectional area. Assume also that when the single thread snares a flying insect, the insect's kinetic energy is transferred to the stretching of the thread. (a) How much kinetic energy would put the thread on the verge of breaking? What is the kinetic energy of (b) a fruit fly of mass 5.50 mg and speed 2.20 m/s and (c) a bumble bee of mass 0.440 g and speed 0.840 m/s? Would (d) the fruit fly and (e) the bumble bee break the thread? 0.900 1.20 2.20 Strain Stress (GN/m2)
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![The figure shows an approximate plot of stress versus strain for a spider-web thread, out to the point of breaking at a strain of 2.20.
The vertical axis scale is set by a = 0.160 GN/m²,b = 0.500 GN/m?, and c = 0.720 GN/m². Assume that the thread has an initial length
of 0.700 cm, an initial cross-sectional area of 7.00 × 10-12 m², and (during stretching) a constant volume. The strain on the thread is
the ratio of the change in the thread's length to that initial length, and the stress on the thread is the ratio of the collision force to
that initial cross-sectional area. Assume also that when the single thread snares a flying insect, the insect's kinetic energy is
transferred to the stretching of the thread. (a) How much kinetic energy would put the thread on the verge of breaking? What is the
kinetic energy of (b) a fruit fly of mass 5.50 mg and speed 2.20 m/s and (c) a bumble bee of mass 0.440 g and speed 0.840 m/s? Would
(d) the fruit fly and (e) the bumble bee break the thread?
0.900 1.20 2.20
Strain
Stress (GN/m2)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F94b5d9e5-a910-4586-8266-4b923c499ba5%2F90378f61-81be-4b81-9f66-16796c0912ec%2Fwljb2k_processed.png&w=3840&q=75)
Transcribed Image Text:The figure shows an approximate plot of stress versus strain for a spider-web thread, out to the point of breaking at a strain of 2.20.
The vertical axis scale is set by a = 0.160 GN/m²,b = 0.500 GN/m?, and c = 0.720 GN/m². Assume that the thread has an initial length
of 0.700 cm, an initial cross-sectional area of 7.00 × 10-12 m², and (during stretching) a constant volume. The strain on the thread is
the ratio of the change in the thread's length to that initial length, and the stress on the thread is the ratio of the collision force to
that initial cross-sectional area. Assume also that when the single thread snares a flying insect, the insect's kinetic energy is
transferred to the stretching of the thread. (a) How much kinetic energy would put the thread on the verge of breaking? What is the
kinetic energy of (b) a fruit fly of mass 5.50 mg and speed 2.20 m/s and (c) a bumble bee of mass 0.440 g and speed 0.840 m/s? Would
(d) the fruit fly and (e) the bumble bee break the thread?
0.900 1.20 2.20
Strain
Stress (GN/m2)
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