The figure represents an insect caught at the midpoint of aspider-web thread. The thread breaks under a stress of 9.2 × 108N/m2 and a strain of 2.00. Initially, it was horizontal and had alength of 3.5 cm and a cross-sectional area of 9.5 × 10-12 m2. Asthe thread was stretched under the weight of the insect, its volumeremained constant. If the weight of the insect puts the thread onthe verge of breaking, what is the insect's mass? (A spider's webis built to break if a potentially harmful insect, such as a bumblebee, becomes snared in the web.)
