The physical disintegration and chemical decomposition of rock at or near Earth's surface is called ______________
Fill in the blank(s) with correct word
weathering
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Doppler Effect: A train is traveling away from you at 120 km/h. It blows its whistle, and you hear a tone of 0.400 kHz. Take the speed of sound to be 340 m/s. What frequency does the whistle actually produce?
A. 444 Hz B. 439 Hz C. 364 Hz D. 361 Hz
Describe the primary difference between the northern and southern hemispheres on Mars
What will be an ideal response?
A 75-kg man is standing in a 20-kg boat. The man steps to the right thinking he is stepping out onto the dock. However, the following will actually happen (ignore the friction of the water or air on the boat or the man):
a. The man only moves a short distance to the right while the boat moves a larger distance to the left. b. The man only moves a short distance to the left while the boat moves a larger distance to the right. c. The man actually stays still while the boat moves toward the left. d. The boat doesn't move and the man moves to the right. e. None of the above.
A sinusoidal wave of wavelength ? travels along a stretched string. Then the string is brought to rest and a second simultaneous wave of wavelength 2? is established on the string. The wave speed of the second wave is
1. twice that of the first. 2. half that of the first. 3. ?2 times that of the first. 4. same as that of the first.