1)) Show that the radius of gyration (K) of a thin slender rod of mass M and length L through its center O as the axis of
rotation can be written as K= 13 L
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The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?

Which of hubble’s discovery support the big bang theory

What surface does the epithelial tissue cover? a. the surface of the body b. lines internal organs c. forms many glands d. all of the above