Name the primary and secondary colors of the subtractive theory of color


Primary colors are cyan, magenta, and yellow. Secondary colors are red, green, and
blue.

Physics & Space Science

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Weight and g: An astronaut goes out for a "space-walk" at a distance above the earth equal to the radius of the earth. What is her acceleration due to gravity at that point?

A. zero
B. g
C. g/2
D. g/4
E. g/

Physics & Space Science

At what point is the charge per unit area greatest on the surface of an irregularly shaped conducting solid?

a. where surface curves inward b. where surface is flat c. where curvature is least d. where curvature is greatest

Physics & Space Science

A proton moving with a velocity of 4.0 × 104 m/s along the +y-axis enters a magnetic field of 0.20 T directed towards the -x-axis. What is the magnitude of the magnetic force acting on the proton? (e = 1.60 × 10-19 C)

A) 8.0 × 10-15 N B) 1.3 × 10-15 N C) 0 N D) 3.9 × 10-15 N E) 2.6 × 10-15 N

Physics & Space Science

In order to produce an image double the size of an object with a converging lens of focal length f, what object distance should be used?

A. f B. f/2 C. 2f D. 2f/3 E. 3f/2

Physics & Space Science