A line between a planet and the sun sweeps out two equal areas at different places as it moves along its orbit. Which factor remains constant as this happens?
Responses:
a) the time required to sweep out the areas
b) the planet’s speed as it sweeps out the areas
c) the distance from the sun to the planet while it sweeps out the areas
d) the distance the planet moves along its orbit while it sweeps out the area
4 answers
a) the time required to sweep out the areas
A satellite orbiting Earth at an orbital radius r has a velocity v. Which represents the velocity if the satellite is moved to an orbital radius of 5r?
Responses:
a) 1/5 v
b) 1/ to the square root of 5 v
c) 5v
d) to the square root of 5 v
Responses:
a) 1/5 v
b) 1/ to the square root of 5 v
c) 5v
d) to the square root of 5 v
b) 1/√5 v
Which did Kepler notice about planetary motion that caused him to propose Kepler’s first law of orbital motion?(1 point)