In the context of the rings of Saturn, the F ring is clumpy and sometimes appears braided because:
A) of two shepherd satellites.
B) resonances with moons remove the gaps in the ring.
C) straying particles are gravitationally pulled out of the ring.
D) shepherd satellites are absent.
A
You might also like to view...
A charged particle (m = 5.0 g, q = -70 mC) moves horizontally at a constant speed of 30 km/s in a region where the free fall gravitational acceleration is 9.8 m/s2 downward, the electric field is 700 N/C upward, and the magnetic field is perpendicular to the velocity of the particle. What is the magnitude of the magnetic field in this region?
a. 47 mT b. zero c. 23 mT d. 35 mT e. 12 mT
A figure skater is spinning slowly with arms outstretched. She brings her arms in close to her body and her moment of inertia decreases by 1/2. Her angular speed increases by a factor of
A) 2. B) 4. C) . D) 1 E) 1/2.
The distance between the ruled lines on a grating is 1770 nm. The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band
What is the longest wavelength that appears in the third order spectrum? A) 590 nm B) 570 nm C) 550 nm D) 530 nm E) 610 nm
Of the following energies for photons, which is the least energy that could result in photoelectron production if the work function is 1.60 eV?
a. 1.50 eV c. 2.90 eV b. 6.01 eV d. 3.50 eV