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Lana71 [14]
3 years ago
5

Which frequency would be the third harmonic in a series for an open-pipe resonator if the fundamental is 440 Hz

Physics
1 answer:
Yanka [14]3 years ago
8 0

Answer:

1320 Hz

Explanation:

The third harmonic is given as 3fo, where fo is the fundamental frequency.

The fundamental frequency is the lowest frequency that can occur in a pipe. In an open pipe, both even and odd harmonics occur which are multiples of the fundamental frequency fo. Hence the harmonics in an open pipe are; 2fo, 3fo,4fo..... etc.

For the third harmonic; 3fo = 3 (440 Hz) = 1320 Hz

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A train car with mass m1 = 515 kg is moving to the right with a speed of v1 = 7.5 m/s and collides with a second train car. The
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A calorimeter is used to determine the specific heat capacity of a test metal. If the specific heat capacity of water is known,
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Answer:

initial and final temperatures of both the water and metal, mass of the metal, and mass of the water

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Heat lost by the metal, Q = mc(t_{2} - t_{1})

Heat gained by the water in the calorimeter, Q_{w} = m_{w}c_{w}(t_{2w} - t_{1w})

For energy to be conserved in the system, the heat lost by the metal will equal the heat gain by the water in the calorimeter.

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t₂ is the final temperature of the metal

t₁ is the initial temperature of the metal

m_{w} is the mass of the water

c_{w} is specific heat capacity of water

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t_{1w} is the initial temperature of water

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Initial and final temperatures of both the water and metal,

Mass of the metal, and mass of the water

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