Which one of the following statements is true?
A) Desert landscapes are monotonous, relatively flat areas covered to various depths with sand
B) Deserts and dry lands are concentrated in areas of ascending air masses and relatively low atmospheric pressures
C) Despite infrequent rainfalls, erosional and depositional features of running water are important in desert landscapes
D) Wind is the major cause of erosion in deserts because there is little water but a lot of wind available
Ans: C) Despite infrequent rainfalls, erosional and depositional features of running water are important in desert landscapes
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In absolute visual magnitude, Mv, the subscript V refers to the:
A) apparent magnitude of a star observed from Earth. B) wavelengths of light your eye can see. C) distance between the sources of light. D) luminosity of a star observed from Earth.
A mass of 5 kg is released from rest on a smooth incline making an angle of 37° to the horizontal. The tangential component of acceleration is closest to:
1.10 m/s²
2.8 m/s²
3.6 m/s²
4.4 m/s²
5.2 m/s²
6.0 m/s²
7.Exactly halfway between 2 of the above answers
8.The negative of one of the answers above
9.It is impossible to determine the tangential component of the block's acceleration
10.I do not know what is meant by "tangential" in this situation
What is meant by a fouling factor?
What will be an ideal response?
What would happen to Jupiter if we could somehow double its mass?
A) Its density would decrease and its diameter would double. B) Its density would stay about the same and its volume would double. C) Its density would increase but its diameter would barely change. D) It would become a star, with nuclear fusion in its core.