A space station orbits the Earth with constant speed. What can be said about the space station's acceleration?
1.It is zero because the space station moves with constant speed.
2.It is greater than 9.8 m/s2 because the space station is moving so quickly.
3.It is less than 9.8 m/s2 because the space station is so high above the Earth’s surface.
4.It is equal to 9.8 m/s2.
3
You might also like to view...
In a double-slit experiment using light of wavelength 486 nm, the slit spacing is 0.600 mm and the screen is 2.00 m from the slits. Find the distance along the screen between adjacent bright fringes
This figure shows an airplane traveling east to west along Earth's equator at the same speed that Earth rotates from west to east. People on Earth would, of course, simply see the airplane fly westward at 1,670 km/hr. What is the significance of the difference in viewpoints between people on Earth and people on the Moon?
A) It shows that motion is relative not absolute. B) It shows that you can get a wrong answer if you don't view the situation from the correct perspective. C) It shows that the airplane is traveling in a direction opposite to Earth's rotation. D) It shows that airplanes can move quite fast if you view them from the right place.
The pregalactic blobs had masses similar to
A) dwarf galaxies. B) the Sun. C) the Earth. D) the Milky Way. E) open clusters of stars.
One fundamental consequence of the Copernican model which many people had difficulty accepting at the time it was proposed was that the Earth
A) must be moving through space B) was rotating on its axis C) must be stationary in space D) must be smaller than the Sun