A chemical energy ➡️Kinetic energy ➡️Heat energy
Time taken for a message to sent from earth to reach the first astronauts is 140 second.
It takes about three days for a spacecraft to reach the Moon. in the course of that time a spacecraft travels at the least 240,000 miles 386,400 km that is the space between Earth and the Moon. The specific distance depends at the specific path selected.
The distance from earth to moon is approximately3.84*108m
So, the distance from earth to the astronauts is3.84*108m - 10500*103m =3.735*108m
The speed of light c = 2.99792458*108m/s
So, divided the distance from earth to astronauts by the speed off light,
3.735*108m/2.99792458*108m/s ˜1.25seconds
Divided the Pluto-earth distance by speed of light:
Hence, 4.2*1010m/2.99792458*108m/s = 140seconds
Learn more about astronauts here:-brainly.com/question/24496270
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Answer:
continue moving with constant velocity
Explanation:
According to the big bang theory, the universe was once a very C. hot and hostile place, and it expanded rapidly. This rapid expansion was the very reason it eventually cooled down and eventually got to its present state where all the planets and galaxies and what not were created.
A. Thermal energy
Thermal energy is heat energy, therefore the hotter a solid is the more thermal energy it has.
C. Volume
When an object gets hotter, it expands. This is becuase the particles vibrate more and so are less compact.
