Combining Newton's and Kepler's laws, we can weigh the Sun, provided we know:
A) its density as found by spectroscopy.
B) its temperature as found by Wien's Law.
C) the size of the A.U. and exact length of the year.
D) the Earth's mass and circumference.
E) the exact timings of the transits of Venus and its diameter.
C
You might also like to view...
Which is the most massive star?
A. Star of 0.5 solar masses B. Coolest possible main sequence star C. Type B main sequence star D. Type G main sequence star E. Hottest possible main sequence star
A series LC circuit contains a 100-mH inductor, a 36.0-mF capacitor and a 12-V battery. The angular frequency of the electromagnetic oscillations in the circuit is
a. 36.0 × 10^?4 rad/s. b. 6.00 × 10^?2 rad/s. c. 2.78 rad/s. d. 16.7 rad/s. e. 277 rad/s.
Unpolarized light of intensity I0 passes through four ideal polarizing sheets. The polarizing angle of each sheet is rotated 30° from the one before it, so that the last sheet is aligned at 90° to the first sheet
What is the intensity of the light emerging from the fourth sheet in terms of I0?
A boy and a girl are balanced on a massless seesaw. The boy has a mass of 60 kg and the girl's mass is 50 kg. If the boy sits 1.5 m from the pivot point on one side of the seesaw, where must the girl sit on the other side for equilibrium?
A) 3.0 m B) 1.3 m C) 2.5 m D) 1.8 m E) 1.2 m