Why are Mars' seasons more extreme than those of the Earth?
A) Mars' axial tilt is slightly more than our 23.5 degrees.
B) Mars' weather is affected by evaporation from the polar ice in its summer.
C) Mars' seas dried up long ago.
D) Mars' orbit is more eccentric than our almost circular one.
E) All of these contribute to the huge seasonal changes that Mars experiences.
E
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Interplanetary radio station KLGM broadcasts at a frequency of 101 MHz. If you are in a high speed rocket heading straight toward the station, where should you tune your radio to get the best reception of station KLGM? (Hint: Consider the Doppler effect and remember the relationship between wavelength and frequency.)
a) exactly 101 megahertz b) less than 101 megahertz c) greater than 101 megahertz
At any depth in a fluid at rest, the pressure is the same in all directions at the given depth
Indicate whether the statement is true or false
List and describe the two types of waves
What will be an ideal response?
Why is it so difficult to make a direct image of a planet around another star?
What will be an ideal response?