Final answer:
The International Space Station orbits Earth once every 90 minutes at a typical orbital speed around 7.66 km/s.
Step-by-step explanation:
The International Space Station (ISS) orbits the Earth approximately 250 miles above the surface, which translates to approximately 400 kilometers (4.00 × 102 km) in altitude. Based on the information provided, the ISS has an orbital period of 90 minutes. This is the time it takes for the space station to make one complete orbit around the Earth.
To calculate the orbital speed of the ISS, we can use the strategy that includes the Earth's radius plus the altitude of the ISS. However, since an exact speed value isn't provided in the reference information, it's understood that typical orbital speeds for the ISS are on the order of 7.66 km/s. We can confirm this figure because it's consistent with known data that an object in low Earth orbit similar to the ISS generally travels at speeds around this magnitude.