The International Space Station typically travels in a circular orbit at an altitude of 400 km above the Earth's surface. The Earth itself has a radius of about 6400 km. Assume that the space station travels in a circular orbit at constant speed (this is a perfectly reasonable assumption). a. Given that the value of g is 8.68 m/s^2 at an altitude of 400 km, determine the value of the space station's speed in its circular orbit. m/s
b. At this speed, how many orbits does the shuttle make in 24.0 hours? Use three significant figures. Partial orbits are fine an answer like 7.34 orbits would be perfectly acceptable. orbits