The speed of travel for radio waves is
A. at a speed that depends on frequency.
B. usually at the same speed as sound waves.
C. slower, on average, than sound waves.
D. always much faster than sound waves.
Answer: D
You might also like to view...
Unfortunately, much of excess packaging does not serve to protect the product but is a marketing tool instead.
Answer the following statement true (T) or false (F)
The Sonoma orogeny was the result of suturing of a volcanic island arc system onto the west
coast of North America. Indicate whether the statement is true or false.
Which of the following deserts owes its existence to being located far from the ocean in a continental
interior? a. The Gobi b. Death Valley c. The Saharan d. The Atacama e. The Kalahari
What is a high level, rounded cloud?
a. cirrus b. cirrocumulus c. cirrostratus d. cirrocirrus