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Considering the relationship between wavelength and frequency, which of the following statements is true 

How do sunrays hit the Earth during winter? And during summer?

Why did NASA choose L2 (shown below) for the Webb telescope?  image.png

Name three things that would happen without the moon 

Northern hemisphere’s summer occurs at perihelion (closer distance to the sun) 

Define the terms ecofacts, artifacts, and context (8 pts. for each definition), and then describe how they relate to one another in the archaeological study of ancient humans (8 pts.).

Which statement is true regarding the genetic predisposition for developing Marfan Syndrome?

Identify which of the following items are true regarding a splay-tree with nodes and splay-tree operations. For each statement, select True or False. 1) The amortized cost of a splay-tree operation is

Suppose you are given an undirected graph with associated edge costs which are all positive and distinct and let be a shortest-path from node to node in . Now replace all edge costs by a new cost , thereby creating a new instance of the problem with the same graph set of nodes and set of edges but modified edge costs. Select all options below where would still be guaranteed to be a shortest path from to in this new instance of the graph (with modified edge costs ): For the following statements, select True or False. 1)

Which of the following statements are true regarding the standard version of the stable matching problem given advisors and students seen in lecture. For all the statements, select True or False. 1) An unmatched pair  is unstable with respect to a matching  if advisor a and student s prefer each other to their current pairings assigned by . [1]  2) The standard propose-and-reject algorithm seen in lecture may run for