How can Jupiter have such a strong magnetic field?
What will be an ideal response?
Jupiter has a magnetic field about 14 times stronger than Earth's field. Apparently, the field is produced by the dynamo effect operating in the highly conductive liquid metallic hydrogen as it is circulated by convection and spun by the rapid rotation of the planet. This powerful magnetic field dominates a huge magnetosphere around the planet.
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Scientists believe that large storms on Saturn are:
A) tied to Saturn's rings. B) in the high altitude ammonia clouds. C) only found at the equator. D) rooted deep in the atmosphere. E) in Saturn's troposphere.
The Jovian moons Io, Europa, Callisto and Triton are
A) larger than Pluto but smaller than Mercury B) smaller than Pluto C) about the same size as Pluto D) larger than Pluto but smaller than the Moon
In Figure 6-1, the block of mass m is at rest on an inclined plane that makes an angle ? with the horizontal. The force of static friction f must be such that
A) f > mg. B) f > mg cos?. C) f > mg sin?. D) f = mg cos?. E) f = mg sin?
A fully charged parallel-plate capacitor remains connected to a battery while you slide a dielectric between the plates. What happens to the value of Q?
1.It increases. 2.It decreases. 3.It stays the same.