How did the planets and moon move? Did all of the planets move the same way? Explain why Ptolemy might think that the planets and moon revolve around Earth.

12000j is work done

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

c) a core temperature of only ten thousand kelvin