If a surface is illuminated by magenta light and the red is absorbed, then the color of the surface will appear as

A. green.
B. yellow.
C. blue.
D. red.


Answer: C

Physics & Space Science

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Answer the following statement true (T) or false (F)

Physics & Space Science

The graph shows how a star's orbital speed varies with time because of the gravitational tug of an orbiting planet. These data were obtained by measuring __________.

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

An unknown amount of gas is placed in a container with a moveable piston of negligible mass. The cross-sectional area of the container is A. When a mass M is placed on the piston, the height of the piston above the bottom of the container is h

What is the pressure of the gas in the container?

1.Mg 2.MgA 3.MA 4.MA/h 5.Mg/h 6.Mh/A 7.Mg/A 8.M/A 9.None of the above 10.Impossible to determine from the given information.

Physics & Space Science

The wavelengths corresponding to the harmonics of a string with fixed ends can be found by saying that the length of the string must be equal to

A) an odd number of quarter-wavelengths. B) an odd number of third-wavelengths. C) an odd number of half-wavelengths. D) an integer number of half-wavelengths. E) an integer number of wavelengths.

Physics & Space Science