The main difference between a radio wave and a light wave is its
A) speed.
B) wavelength.
C) frequency.
D) all of the above
E) two of these
E
You might also like to view...
Weigh a piece of paper, and then burn it until it turns into ash. Collect the produced gases and ash and weigh them. The weight of the gas and ash produced equals the weight of the original piece of paper and the weight of the oxygen consumed in the burning. Which scientific law explains this?
A. law of conservation of matter B. first law of thermodynamics C. second law of thermodynamics D. theory of relativity
Recognizing, preventing and controlling landslides is prohibitively expensive and so is rarely done. Indicate whether the statement is true or false
Two main advantages of the EU are:
A) common defense shield and combined navies B) agreement among political parties and erased borders C) common market and euro currency D) religious agreement and lack of terrorism
Which of the following is the main hazard for areas along the river terrace?
A. debris flows that carry large blocks from the volcano B. slow movement of material downslope C. rock falls D. shrinking and swelling of clays