What is the electric force between a glass ball that has +1.4 x 10-6 C of charge and a rubber ball that has – 5 x 10-6 C of charge when they are separated by a distance of 5.1 cm? The value of the Coulomb constant is 8.98755 x 109 Nm²/C2. 2

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?

Aregular polygon has angkes of size 150° each. how many side has the polygon

Acompound machine is also called a machine. a. force b. simple c. complex d. directional