1. a space ship is moved twice as far away
from the moon. by what factor does the
gravitational force of attraction change?
it would decrease by 1/4
2. a space ship is moved to a distance 5
times its original distance. by what
factor does the gravitational force of
attraction change?
3. you weight 200 lbs on the planet xeon.
xeon has a radius of 1000 miles. how
much would you weigh if you could
travel a distance of 4000 miles from the
surface (a total of 5000 miles from the
center of the planet)?
4. you are reading by
candlelight and you
find that you do not
have enough light to
see since you are a
distance of 6 feet
away. to increase the
light by a factor of 4
how close must you be
to the light?