Điện tích điểm q= 5nC đặt tại gốc tọa độ. Điện thế do điện tích điểm q1 gây ra tại điểm P( 3cm, 4cm, 0) bằng bao nhiêu

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?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

Diverging mirrors and lenses always produce images