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Assoli18 [71]
3 years ago
7

Volume or intensity of a sound wave is measured by the size of the _________ and reported in decibels. A) amplitude B) frequency

C) trough D) wavelength
Physics
2 answers:
Tasya [4]3 years ago
7 0
A.) amplitude (amplitude equates to the volume of a sound wave, frequency equates to the note that is played)
kotegsom [21]3 years ago
4 0

Volume or intensity of a sound wave is measured by the size of the amplitude. The greater the amplitude, the louder the sound.

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What happens to the mechanical energy of an apple as it falls from a tree?
Vikentia [17]

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When the apple falls from the tree, it has some gravitational potential energy due to its height. Now, When it starts falling, the Gravitation Potential energy will starts converting into the Kinetic Energy. When the apple is about to strikes the ground, the Gravitational Potential energy have been converted into the Kinetic Energy.

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4 0
3 years ago
A cylindrical, 0.500-m rod has a diameter of 0.02 m. The rod is stretched to a length of 0.501 m by a force of 3000 N. What is t
Salsk061 [2.6K]

Answer:

Y = 4.775 x 10⁹ Pa = 4.775 GPa

Explanation:

First, we calculate the stress on the rod:

stress = \frac{Force}{Area} = \frac{3000\ N}{\pi r^2}  \\\\stress = \frac{3000\ N}{\pi (0.01\ m)^2}\\\\stress = 9.55\ x\ 10^6\ Pa = 9.55 MPa\\

Now, we calculate the strain:

strain = \frac{Change\ in Length}{Original\ Length}\\\\strain = \frac{0.501\ m - 0.5\ m}{0.5\ m}\\\\strain =  0.002\\

Now, we will calculate the Young's Modulus (Y):

Y = \frac{stress}{strain}\\\\Y = \frac{9.55\ x\ 10^6\ Pa}{0.002} \\

<u>Y = 4.775 x 10⁹ Pa = 4.775 GPa</u>

6 0
3 years ago
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