Considering Newton’s third law, why don’t two equal and opposite forces cancel out each other? 1.Because the two forces act in the same direction
2.Because the two forces have different magnitudes
3.Because the two forces act on different systems
4.Because the two forces act in perpendicular directions

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?

Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.