An astronaut is in a capsule in a stable orbit, about two Earth radii from the center of Earth. Her weight is
A) zero N.
B) the same as on the surface of Earth.
C) about one-half of her weight on the surface of Earth.
D) about one-third of her weight on the surface of Earth.
E) about one-quarter of her weight on the surface of Earth.
E
You might also like to view...
Which one of the following statements is true concerning resistors connected in series within an electric circuit?
a) The potential difference across each of the resistors is the same. b) The current through each of the resistors is the same. c) The energy dissipated by each of the resistors is the same. d) The resistance of each of the resistors is the same. e) The resistivity of each of the resistors is the same.
Velocity Addition: Two spaceships are approaching one another, each at a speed of 0.31c relative to a stationary observer on Earth. What speed, in terms of the speed of light, does an observer on one spaceship record for the other approaching spaceship?
Fill in the blank(s) with the appropriate word(s).
An epicycle was used in geocentric models to explain ________.
A. Earth's circular shadow B. parallax C. retrograde motion D. eclipses E. aurora
According to the second law of thermodynamics, for any process that may occur within an isolated system, which one of the choices applies?
A) Entropy remains constant. B) Entropy increases. C) Entropy decreases. D) Both A and B are possible. E) Both A and C are possible.