A swan is flying at a speed of 17.5m/s. There is wind blowing from the East at 12.5m/s. a) If the swan pointed due South, what would be the magnitude and direction of its velocity relative to the ground?
b) If the swan wishes to travel south, what would be the magnitude and direction of its velocity relative to the ground?
c) If the swan travels due South as in part b, what will be its displacement after 8.5 hours?

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature