In weight-critical designs, the stiffness requirement for the relative merit uses the relative ___________elastic modulus.
Fill in the blank(s) with the appropriate word(s).
specific
Physics & Space Science
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When electromagnetic radiation is created it is said to be
A) reflected B) emitted C) refracted D) absorbed
Physics & Space Science
A fused combination of a diverging and converging lens pair each made from a different index of refraction glass, is used to reduce the occurrence of which of the following effects?
a. spherical aberration b. mirages c. chromatic aberration d. light scattering
Physics & Space Science
________ major contribution to astronomy is his extensive series of measurements of planetary positions.
A. Kepler's B. Copernicus's C. Galileo's D. Tycho Brahe's
Physics & Space Science
Eventually, all low mass stars will become white, then black, dwarfs
Indicate whether the statement is true or false
Physics & Space Science