An object emits a range of electromagnetic energy wavelengths because
A. relativity theory states that objects attain varying terminal velocities.
B. lowest and highest vibration rates are cancelled.
C. all molecules vibrate at the same rate.
D. not all molecules vibrate at the same speed.
Answer: D
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Which of the following explains why thunderstorms along cold fronts are more severe than thunderstorms along warm fronts?
A. Uplift is more rapid along cold fronts. B. Cold air has a greater capacity for moisture. C. Cold fronts move more slowly than warm fronts. D. There is greater turbulence ahead of cold fronts due to the higher air pressure.
Muslims all over the world are encouraged to study the Koran in its original language, Arabic
Indicate whether the statement is true or false.
Circulation in the sea occurs in what levels?
a. Surface currents b. Middle currents c. Deep currents d. All of the above e. Both a and c
What is a rem?
A. Rem stands for Rapid Electron Motion. B. Rem is an '80s rock group. C. A rem is the maximum exposure limit for occupational safety. D. A rem is a unit for measuring radiation exposure. E. A rem is the number of radiation particles absorbed per second.