What is this object?

A) Jupiter's moon Europa
B) Saturn's moon Titan
C) Uranus's moon Miranda
D) Neptune's moon Nereid
E) Jupiter's moon Callisto


A) Jupiter's moon Europa

Physics & Space Science

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Lenz's Law: A bar magnet is oriented above a copper ring, as shown in the figure. The magnet is dropped and passes completely through the ring. As viewed from above, what is the direction of the current induced in the ring after the magnet has completely passed through the ring and is somewhat below it?

A. There is no current in the ring. B. counterclockwise C. clockwise

Physics & Space Science

A coil of 160 turns and area 0.20 m2 is placed with its axis parallel to a magnetic field of initial magnitude 0.40 T. The magnetic field changes uniformly from 0.40 T in the +x direction to 0.40 T in the -x direction in 2.0 s

If the resistance of the coil is 16 ?, at what rate is power generated in the coil? A) 5.0 W B) 10 W C) 15 W D) 20 W E) 25 W

Physics & Space Science

Assume everyone in the United States consumes one soft drink in an aluminum can every two days. If there are 270 million Americans, about how many tons of aluminum need to be recycled each year if each can weighs 1/15 pound and one ton = 2 000 pounds?

a. 450 000 tons b. 1.6 million tons c. 3.3 million tons d. 0.82 million tons e. 410 000 tons

Physics & Space Science

The first spacecraft to drop a weather probe into Jupiter's atmosphere was:

A) Cassini. B) Global Surveyor. C) Voyager 2. D) Viking 1. E) Galileo.

Physics & Space Science