Which of the following best why we see horizontal "stripes" in photographs of Jupiter and Saturn?
A) The dark and light stripes correspond to alternating bands of different chemical composition.
B) The light stripes are regions of high clouds, and the dark stripes are regions where we can see down to deeper, darker clouds.
C) There are three different color stripes corresponding to the three different types of clouds found on these planets.
D) Dark stripes are those in which there is a stratosphere and light stripes are those with no stratosphere.
B
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A circular loop of wire of cross-sectional area 0.12 m2 consists of 200 turns, each carrying 0.50 A. It is placed in a magnetic field of 0.050 T oriented at 30° to the plane of the loop. What torque acts on the loop?
A) 0.25 m?N B) 0.52 m?N C) 2.5 m?N D) 5.2 m?N E) 25 m?N
In the apparatus shown in figure Q4.1a, the value displayed by the ammeter is proportional to 
A. The rate at which electrons emerge from the cathode. B. The average kinetic energy of the ejected electrons. C. The maximum kinetic energy of the ejected electrons. D. Both A and C.
The open universe would require ?o be less than zero
Indicate whether the statement is true or false
A body is oscillating up and down at the end of a spring. Let's consider when the body is at the top of its up and down motion. The acceleration
a. is zero c. points up b. has its largest magnitude d. points down