A transiting extrasolar planet is observed to block 1% of its host star's light. How does the radius of this planet compare to the radius of the host star?
A) The planet's radius is 0.1% of the host star's radius.
B) The planet's radius is 1% of the host star's radius.
C) The planet's radius is 10% of the host star's radius.
D) The planet is the same size as the host star.
C) The planet's radius is 10% of the host star's radius.
You might also like to view...
A mobile is made of identical objects of mass m suspended so that the lowest row has one object, the row above two objects, and the row above three objects. All the strings are at 45° angles. What is the average tension in the strings connecting the highest row to the ceiling?
A.
B.
C.
D.
E.
Eratosthenes first learned about the position of the Sun in mid-summer by
A) consulting library information. B) setting up a stick at Syene. C) setting up a stick at Alexandria. D) setting up sticks at both Syene and Alexandria. E) none of the above
What does the prefix giga- stand for?
What will be an ideal response?
A 15 kg bullet is fired with a velocity of 200 m/s from a 6 kg rifle. what is the recoil velocity of the rifle?