List the changes in the temperature and the air pressure that occur as a warm front passes over a surface area
As a warm front passes over a surface area, the air temperature rises and the air
pressure generally drops.
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Why was Herschel's strategy for mapping our Galaxy flawed?
A) His infrared telescopes couldn't penetrate the dust clouds. B) He used globular clusters, lying above the dust in the disc. C) He relied on visual wavelengths, which are obscured by dust. D) He used radio telescopes that didn't give enough resolution. E) He assumed Earth was at the extreme edge of the Galaxy.
When tuning a radio to a particular station, you match the frequency of the internal electrical circuit with the frequency of the wanted radio station. What principle is being employed?
A) forced vibrations B) resonance C) beats D) reverberation E) wave interference
If a sunspot has a temperature of 4,500 K and the surrounding solar surface has a temperature of 5,800 K, how many times brighter is the surface compared to the sunspot?
a. 0.28 b. 0.36 c. 2.8 d. 3.6 e. 36
You would expect millisecond pulsars to be:
A) part of a binary system. B) isolated in space. C) rotating slowly. D) most common in open clusters. E) collapsing rapidly.