What is life meaning if were gonna die because if we put good into the world what the meaning if it wont even help for two seconds say if a rich person gave anthor person 100 dollars either he gonna blow the money get robbed or do something dumb What The point and meaing of life if we gonna die and go to someplace

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.

Ineed ! i have no clue how to do this problem.