Suppose rocket traveler Amelia has a clock made on Earth. Every year on her birthday she sends a light signal to brother Casper on Earth. (Assume Amelia is traveling at a speed of 0.8c from Earth to a planet 8 light years away from Earth and back again.)
(a) At what rate does Casper receive the signals during Amelia's outward journey?
(b) At what rate does he receive the signals during her return journey?

when it gains or loses electrons

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

not too sure thinking all accelerations are pointed down

because if the tool that you are using is not balanced it there would be false mass.