If it takes 320 n of force to push a box up a ramp, yet it would take 1,600 n of force to lift the box straight up, what is the mechanical advantage of the ramp? o a. 0.2 o b. 4 o c. 5 o d. 40

The “death throes” of stars are amongst the most complex phenomena in all of astronomy, and the “corpses” of stars amongst the most energetic and exotic objects in existence. beginning at the end of the core helium fusion stage in a star’s life, describe in detail the post-main sequence development of both (a) a 1.0 solar mass star, and (b) a 25.0 solar mass star. in what significant ways do they differ? what role does each of these types of stars play in the "star-gas-star" cycle and the evolution of chemical elements in our galaxy?

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?