Спутник Фобос обращается вокруг марса по орбите радиусом 9400км с периодом 469 мин. Радиус марса равен 3400. Найдите по этим данным массу Марса
The mass of Mars can be calculated using the formula: M = (4π^2*r^3)/G*T^2, where r is the radius of the orbit, T is the period of the orbit, and G is the gravitational constant. In this case, r=9400 km and T=469 minutes. Since G=6.67*10^-11 (in SI units), the calculation would be M = (4*3.14^2*9400^3)/(6.67*10^-11*469^2) = 6.44*10^23 kg. So, the mass of Mars is approximately equal to 6.44*10^23 kg. This is approximately 0.107 times the mass of the Earth. This makes sense, as Mars is smaller than Earth and has a weaker gravitational pull. It is always good to double check your calculations and units to ensure accuracy. Remember to always use the appropriate units for each quantity and to convert if necessary. Happy calculating!
