If a piece of ribbon were tied to a stretched string carrying a transverse wave, how would the ribbon be observed to oscillate?
a. Perpendicular to the wave motion
b. Parallel to the wave motion
c. Neither (A) nor (B)
d. Both (A) and (B)
a
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Which of the following could not be determined by an observation that only uses spectroscopy?
A) the chemical composition of a distant star B) the speed at which a distant galaxy is moving away from us C) the surface temperature of a distant star D) the rotation rate of a distant star E) the angular size of a distant galaxy
If the magnetic field in a traveling electromagnetic wave has a maximum value of 16.5 nT, what is the maximum value of the electric field associated with this wave? (c = 3.00 × 108 m/s)
A) 5.5 × 10-17 V/m B) 4.95 V/m C) 0.495 V/m D) 55.0 × 10-16 V/m E) 55.0 × 10-15 V/m
The highest atmospheric layer in the Sun is the _______
a. photosphere b. corona c. chromosphere d. prominence
Shown following are six different types of light that travel to Earth from sources in space. Rank these types of light from left to right based on the altitude in the atmosphere where they are completely absorbed, from highest to lowest (Earth’s surface). If two (or more) of the choices reach the same altitude or the surface, rank them as equal by dragging one on top of the other(s).
