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Answer the following statement true (T) or false (F)
False
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Inside the Roche Limit
A) ring systems cannot exist. B) is where large moons form. C) large moons are torn apart. D) hydrogen can only exist in its liquid metallic form. E) there is a gap in a planet's magnetic field.
When two or more capacitors are connected in series to a battery,
A) the total voltage across the combination is the algebraic sum of the voltages across the individual capacitors. B) each capacitor carries the same amount of charge. C) the equivalent capacitance of the combination is less than the capacitance of any of the capacitors. D) all of the given answers E) none of the given answers
Which statement about accretion disks is not true?
A) The primary factor determining whether a white dwarf has an accretion disk is the white dwarf's mass. B) The gas in the inner parts of the disk travels faster than the gas in the outer parts of the disk. C) The gas in the inner parts of the disk is hotter than the gas in the outer parts of the disk. D) Accretion disks are made primarily of hydrogen and helium gas.
Two solenoids are each made of 2 000 turns of copper wire per meter. Solenoid I is 2 m long, while solenoid II is 1 m long. When equal currents are present in the two solenoids, the ratio of the magnetic field BI along the axis of solenoid I to the magnetic field BII along the axis of solenoid II, BI/BII, is
a. 1/4. b. 1/2. c. 1. d. 2 e. 4.