The diagram below shows three approximate locations of the sun along the western horizon. Which number indicates the location of the sun at sunset on the vernal equinox for an observer at a latitude of 48° S?
a. 1
b. 2
c. 3
d. The sun will set in the east for an observer in the southern hemisphere.
e. The sun will not set on vernal equinox at this latitude.
B
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Acceleration: The velocity v(t) of a particle as a function of time is given by v(t) = (2.3 m/s) + (4.1 m/s2)t - (6.2 m/s3)t2. What is the average acceleration of the particle between t = 1.0 s and t = 2.0 s?
A. -13 m/s2 B. -15 m/s2 C. 13 m/s2 D. 15 m/s2 E. 0 m/s2
The radius of curvature for a plane (flat) mirror is
A) negative. B) infinite. C) zero. D) imaginary.
The second is a metric unit of measure
a. True b. False Indicate whether the statement is true or false
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