A crack is 1 mm long and has a 1-nm radius of curvature at the crack tip. What is the magnitude of the stress concentration factor for this crack?

(a) 2
(b) 20
(c) 200
(d) 2000


(d) 2000

Physics & Space Science

You might also like to view...

Which scientists played a major role in overturning the ancient idea of an Earth-centered universe, and about when?

A) Copernicus, Kepler, and Galileo; about 400 years ago B) Aristotle and Copernicus; about 400 years ago C) Newton and Einstein; about 100 years ago D) Huygens and Newton; about 300 years ago E) Aristotle and Plato; about 2,000 years ago

Physics & Space Science

Early AM radios required very long antennae wires. FM antennae are often approximately a meter in size. Can you surmise why sensitive FM aerials are much smaller than those AM wires?

What will be an ideal response?

Physics & Space Science

Waves emitted by the Sun and terrestrial wave emissions are

A) the same except for their frequencies and wavelengths. B) entirely different kinds of waves. C) identical.

Physics & Space Science

After four half-lives, the surviving tritium atoms are removed. Compared to completely new tritium atoms, they are expected to live

A. 1 /8 as long B. 1/4 as long C. 1 /2 has long D. exactly as long

Physics & Space Science