b. We measure the spectra of stars A and B and find that the two spectra peak at the same wavelength. However, we find that star A appears 25 times brighter than star B. Assuming the stars are the same size, which star is farther from us, and by how much? Do not use a calculator. Star is times farther from Earth than Star c. How much stronger is the force of gravity from the Sun at Neptune's orbit than at Pluto's orbit? To figure this out, let's move Neptune to Pluto's orbit, and calculate the ratio of the strength of gravity at these two locations (that is, find Fx / Fp). Assume a, = 30 AU and a, = 40AU. Do not use a calculator. The force of gravity at Neptune's orbit is times greater than the force at Pluto's orbit. d. How does your weight on Jupiter compare to your weight here on Earth? Assume that Jupiter is 300 times more massive than Earth and 10 times larger than Earth. Do not use a calculator. On Jupiter, you weigh times more than you do on Earth