Wave interference occurs for
A) sound waves.
B) light waves.
C) water waves.
D) all of the above
E) none of the above
Answer: D
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If a star is moving ____________ from us, then its spectra will be shifted toward ________ wavelengths, producing a redshift
Fill in the blank(s) with correct word
Which of the following is a common characteristic of the Jovian planets?
A. thick atmosphere B. mostly composed of hydrogen and helium C. lack of solid surface D. ring systems and satellites E. All of these choices are correct.
A Ferris wheel with a radius of 14.0 m rotates at a constant rate, completing one revolution in 30.0 s. What is the apparent weight of a 60.0-kg passenger when she is at the bottom of the wheel?
A) 589 N B) 562 N C) 625 N D) 852 N E) 432 N
Which of the following statements best describes the idea behind the Labeled Release Experiment on board the Viking landers?
A) living organisms in the soil should give off gases when they metabolize nutrients B) soil with living organisms in it should contain organic molecules C) living organisms in the soil should incorporate carbon from atmospheric gases D) radioactive gases should be produced when radioactive nutrients are added to a soil sample