Masses of the planets are easiest to determine if
A) they are terrestrial and the extra size of the planet's disk can be measured.
B) they are jovian and their oblateness can be found.
C) they have natural satellites whose motions can be precisely measured.
D) they are dense and easily deflect the path of passing spacecraft.
E) they move rapidly and their periods are easily measured.
C
You might also like to view...
Simple Harmonic Motion: If a pendulum makes 12 complete swings in 8.0 s, what are its (a) frequency and (b) period?
What will be an ideal response?
A proton is released such that it has an initial speed of 4.1 × 10^5 m/s from left to right across the page. A magnetic field of 0.8 T is present at an angle of 45° to the horizontal direction (or positive x axis). What is the magnitude of the force experienced by the proton? (qp = 1.6 × 10^?19 C)
a. 5.9E–33 N b. 9.3E–33 N c. 3.7E–14 N d. 4.5E–14 N e. 3.7E–14 N
A change of phase takes place at a constant
a. temperature. b. volume. c. heat. d. pressure.
Rapidly increasing demands for natural resources, employment, education, and social services make any attempts to protect natural resources and improve living standards very difficult
What will be an ideal response?