A 1040 steel specimen has a yield stress of 350 MPa, an ultimate tensile strength of 515 MPa, and an elastic modulus of 211 GPa. The specimen is stressed to 400 MPa. What is the elastic strain energy density in this specimen?
What will be an ideal response?
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Young Earth developed a layered structure under the influence of
A) impact heating and convection in its interior. B) gravitational contraction and radioactive decay. C) meteorite bombardment. D) gravity and density segregation—the process of differentiation.
If you double the distance between two bodies, the force of gravity between them would
A. double. B. decrease by one half. C. become four times as strong. D. decrease by one fourth.
If an x-ray beam of wavelength 1.4 × 10-10 m makes an angle of 20° with a set of planes in a crystal causing first order constructive interference, at what angle will the second order line appear?
A) 40° B) 20° C) 43° D) 4.0° E) 11°
Work: A 2.0-kg object is lifted vertically through 3.00 m by a 150-N force. How much work is done on the object by gravity during this process?
Fill in the blank(s) with the appropriate word(s).