Tensile Stress and Strain: Tensile stress is

A. the strain per unit length.
B. the same as force.
C. the ratio of the change in length.
D. applied force per cross-sectional area.


Answer: D

Physics & Space Science

You might also like to view...

Good tracers of the spiral tracers are all I. very old. II. very young. III. very luminous. IV. moving with large radial velocities

a. I & III b. I & IV c. II & III d. II & IV e. I, III, & IV

Physics & Space Science

Slow surface evolution on the Moon is limited to

a. low-density masses of rock rising from the interior. b. low level meteorite impacts. c. moonquakes disturbing the surface features. d. motion along a network of small faults. e. All of the other choices are correct.

Physics & Space Science

Two solenoids are each made of 2 000 turns of copper wire per meter. Solenoid I is 2 m long, while solenoid II is 1 m long. When equal currents are present in the two solenoids, the ratio of the magnetic field BI along the axis of solenoid I to the magnetic field BII along the axis of solenoid II, BI/BII, is

a. 1/4. b. 1/2. c. 1. d. 2 e. 4.

Physics & Space Science

One of Dirac's many achievements was a generalization of the "action-at-a-distance" concept. Feynman later improved upon that work by creating a space-time diagram to show that

a. particles interact by utilizing exchange particles as force carriers between each other. b. particles interact directly with each other. c. photons are truly waves. d. positrons are positive electrons. e. quarks exist only in multiples of three

Physics & Space Science