Neptune has a mass of 1.0*10²⁶ kg and a radius of 25,000 km.What is the escape velocity of Neptune? [This question requires the use of mathematics.The value of the gravitational constant is 6.67*10^-¹¹ Nt m² kg^-².]

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The escape velocity $ v_e $ is calculated using the formula $ v_e = \sqrt{\frac{2GM}{R}} $. Substituting the given values: $ G = 6.67 \times 10^{-11} \, \text{Nm}^2/\text{kg}^2 $, $ M = 1.0 \times 10^{26} \, \text{kg} $, and $ R = 25,000 \, \text{km} = 2.5 \times 10^7 \, \text{m} $, we find $ v_e \approx 23 \, \text{km/s} $.

Neptune Has a Mass of 1