An astronaut in a satellite 1600km above the Earth experience a gravitational force magnitude 700N on earth. The Earth's radius is 6400km calculate the magnitude of the gravitational force which the astronaut experience in satellite ​

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a. m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles