Failure stress is: a) allowable stress x actual stress b) bending stress/axial stress c) actual stress/actual strain d) factor of safety/actual stress e) none of these

Astronomers discover an exoplanet (a planet of a star other than the sun) that has an orbital period of 3.87 earth years in its circular orbit around its sun, which is a star with a measured mass of 3.59 x 1030 kg. find the radius of the exoplanet's orbit.

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f