Web designers use the CSS ... tags to address image file display instructions for varying screen sizes.
Answer the following statement true (T) or false (F)
False
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Unpolarized light is passed through polarizer 1 . The light then goes though polarizer 2 with its plane of polarization at 30.0° to that of polarizer 1 . Polarizer 3 is placed after polarizer 2 . Polarizer 3 has its plane of polarization at 30.0° to the plane of polarization of polarizer 2 and at 60.0° to that of polarizer 1 . What fraction of the intensity of the original light gets though
the last polarizer? a. 0.707 c. 0.281 b. 0.125 d. 0.553
The air in a closed room has
1) mass, 2) energy, 3) weight, 4) all of these, 5) none of these, and the greater the rate of molecular motion in the air, the greater the 6) temperature. 7) molecular kinetic energy. 8) air pressure. 9) all of these. 10) none of these.
A proton cyclotron has a magnetic field of 0.20 T between its poles and a radius of 0.40 m. What is the maximum energy for the protons from this machine?
A. 
B. 
C. 
D. 
E. 
A laser beam strikes a plane reflecting surface with an angle of incidence of 37°. What is the angle between the incident ray and the reflected ray?
What will be an ideal response?