An organ pipe makes a sound that has a frequency of 450 Hz when the temperature is 20°C. If the temperature is ten degrees colder the wavelength of sound produced in the pipe will
A. get shorter.
B. get longer.
C. stay the same.
D. It is not possible to tell without more information
Answer: A
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Gamma ray bursts are ____
a. too weak to affect life on Earth b. an important influence on mutation and evolution c. the cause of the spectacular auroras at high latitudes d. triggers for solar flares and coronal mass ejections e. capable of causing mass extinction events
Using Wien's law, you can measure the ____ of a distant object without having to travel to it
a. binding energy b. temperature c. radial motion d. energy output e. atomic composition
To tell the difference between a neutron star and a black hole in an X-ray binary, we must find the temperature of the object
a. True b. False Indicate whether the statement is true or false
Describe at least two things that make Earth unique in the solar system?
What will be an ideal response?