Need !
: science
which statement about relative motion is not true?

a. the plane appears to be moving across the sky relative to a person watching from the ground.
b. a seated passenger on a plane is motionless relative to the plane.
c. a plane appears motionless to a skydiver who jumps out of it.
d. flight attendant walking down the aisle is in motion relative to the plane.

Stage in which a typical star has completely stopped fusion

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.

What was bohr’s contribution to the planetary model