1.756 kg indeed it is. My mistake, but how do i find the 1.756 kg?
It looks like i need to use the already known amount of work energy of 16,2 TJ and find a the amount of fuel per 1 J? How do i get that?
T - 1,9 (164160 sec) Earth days means orbiting period on the orbit. Not not necessary here.
There is also a 3)part - Let's assume that the starting device turns nuclear energy into mechanical at the rate of 1/10000 of fuel mass is into useful work. How much nuclear energy we need? A: 1756 kg -...
How many TJ of energy is necessary to get a 300 ton spacecraft from the surface of Venus to 1) orbit at 60520km and 2) to leave the planets gravitational field?
12104km Venus diameter
6052 is Venus radius therefore.
4,9 * 10ˇ24 kg Venus mass
60520km orbit radius
T-1,9 Earth days...