A boat hits a sandbar and slides some distance before coming to rest. Which of the arrows shown below best represents the direction of the boat’s acceleration as it is sliding? (Hint: Draw a motion diagram.)
A. A
B. B
C. C
D. D
E. E
F. F
T. Zero
F. F
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Consider the image formed by a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effect will this have?
A) The top half of the image will be blacked out. B) The lower half of the image will be blacked out. C) The entire image will be blacked out, since the entire lens is needed to form an image. D) The image will appear as it would if the objective were not blocked, but it will be dimmer. E) There will be no noticeable difference in the appearance of the image with the objective partially blocked or not.
Simple Harmonic Motion: If a floating log is seen to bob up and down 15 times in 1.0 min as waves pass by you, what are the frequency and period of the wave?
Fill in the blank(s) with the appropriate word(s).
A space vehicle accelerates uniformly from 85m/s At t =0 to 162 m/s at t = 10.0 s. How far did it move between t = 2.0 s and t =6.0 s?
What will be an ideal response?
In the context of an eclipsing binary system, briefly explain a light curve
What will be an ideal response?