Standing Sound Waves: A violin with string length 32 cm and string density 1.5 g/cm resonates in its fundamental with the first overtone of a 2.0-m organ pipe with one end closed and one end open. What is the tension in the string if the speed of sound in air is 344 m/s?
A. 1000 N
B. 110 N
C. 450 N
D. 4100 N
E. 56 N
Answer: A
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The figure shows a distance vs. time graph of an object with three distinct regions, I, II, and III
?
The object’s acceleration is negative in region(s)
a.
I.
b.
II.
c.
III.
d.
no regions
Acceleration: Suppose that a car traveling to the west begins to slow down as it approaches a traffic light. Which of the following statements about its acceleration is correct?
A. The acceleration is toward the east. B. Since the car is slowing down, its acceleration must be negative. C. The acceleration is zero. D. The acceleration is toward the west.
For the crystallization of minerals from a magma, melting point determines which minerals will crystallize first. For evaporite minerals,
What will be an ideal response?
Atoms are mostly empty space
a. True b. False Indicate whether the statement is true or false