Which was NOT a Voyager discovery about the rings of Saturn?
A) They are made of tens of thousands of narrow ringlets.
B) The F ring particles are herded by two shepherd moons.
C) They have dark spokes that defy gravity.
D) There are hundreds of smaller moons imbedded in them, creating the gaps.
E) The E ring may have been made by volcanic eruptions from Enceladus.
D
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According to Archimedes’ principle, the buoyant force
A. is equal to the mass of the object B. is always greater than the weight of the object C. is equal to the weight of the displaced fluid D. is less than the weight of the displaced fluid if the object sinks
Assuming the Earth's orbital angular momentum is quantized, estimate its angular momentum quantum number (l)
A) 3 × 1074 B) 3 × 1044 C) 3 × 1024 D) 3 × 10-34 E) 3 × 10-44
If a = 3.0 mm, b = 4.0 mm, Q1 = ?60 nC, Q2 = 80 nC, and q = 30 nC in the figure, what is the magnitude of the electric force on q?
A. 1.4 N B. 1.0 N C. 1.7 N D. 2.0 N E. 0.50 N
Consider capacitors C1, C2, and C3, which are connected in series in a closed loop. A switch is placed between C1 and C2. With the switch open, C1is charged to 12.0 volts by a battery. The battery is then disconnected and the switch is closed
Determine the final charge on each capacitor, and the potential difference across each, given that C1 = 2.00 ?F, and C2 = C3 = 3.00 ?F.