Problem A.2: Time Dilation (4 points) Because you are moving with an enormous speed, your mission from the previous Problem A. I will be influenced by the effects of time dilation described by special
relativity: Your Spaceship launches in June 2020 and returns back to tarth
directly after arriving at Sirus.
a) How many years will have passed from your perspective?
b) At which Earth date (year and month) will you arrive back to Earth?

what is the question because that is not a question.

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.