nails4life324
21.08.2019 •
Physics
Tom is 20 years old when he boards a spaceship that flies at 0.800c toward planet x which is 12 lightyears away. left behind on earth is his twin brother tim. upon reaching planet x, tom immediately turns back and returns to earth at a slower speed of 0.600c. what is the biological age of tim upon tom's arrival on earth?
a. 55 yrs old
b. 45 yrs old
c. 40 yrs old
d. 50 yrs old
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Ответ:
Density--> the amount of mass in a given volume
Boiling point: the tempeture when a liquid becomes gas
Conductivity: the ability of a subtance to transfer heat or electricety
Bouyant force: The upward force of an object in a liquid
soulibility: the ability of a subtance to disolve in other.
sorry for bad spelling
Explanation: