Question

In recent years, astronomers have found planets orbiting nearby stars that are quite different from planets in our solar system. Kepler-12b, has a diameter that is 1.7 times that of Jupiter (RJupiter = 6.99 × 107 m), but a mass that is only 0.43 that of Jupiter (MJupiter = 1.90 × 1027 kg ).

Answer 1

3.9 m/s^2

Step-by-step explanation:

Mass of Jupiter: 1.90x 10^27 kg

Radius of Jupiter: 6.99 x 10^7 m

We can use the formula:

`g=(GM)/(R^(2) ) = ((6.67 * 10^(-11))(0.43)(1.90*10^(27)kg) )/((1.7)(6.99*10^(7)m)^(2) )`

Therefore, our answer is

`3.9 m/s^(2)`

Answer 2

g= 3.86 m/s^2

Step-by-step explanation:

given : Kepler-12b, has a diameter that is 1.7 times that of Jupiter (R_Jupiter = 6.99 × 10^7 m), but a mass that is only 0.43 that of Jupiter (M_Jupiter = 1.90 × 10^27 kg ).

to calculate gravity we use the formula

g = GM/r^2

g = 6.67×10^-11 × 0.43×1.9×10^27/( 1.7×6.99×10^7)^2

g = 3.859 ~ 3.86 m/s^2