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PilotLPTM [1.2K]
3 years ago
9

List three sources of information scientists use to learn about ancient climates

Physics
2 answers:
blagie [28]3 years ago
5 0
Rocks,Fossils,Carbon dating
natta225 [31]3 years ago
4 0
Rocks fossils and carbon dating are three sources they use to date ancient climates
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True or false Sound waves do not require a medium in which to travel
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What two units of measure are necessary for describing speed
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The following are possible ways to express the quantity 0.391 (Give ALL correct answers, i.e., B, AC, BCD...) Note: 3.45E-8 is a
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An organ pipe open at both ends has a length of 0.80 m. If the velocity of sound in air is 340 m/s, what is the frequency of the
bazaltina [42]

Answer:

the frequency of the second harmonic of the pipe is 425 Hz

Explanation:

Given;

length of the open pipe, L = 0.8 m

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L = A ---> N   +  N--->N   +   N--->A

where;

L is the length of the pipe in the second harmonic

A represents antinode of the wave

N represents the node of the wave

L = \frac{\lambda}{4} + \frac{\lambda}{2} + \frac{\lambda}{4} \\\\L = \lambda

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Therefore, the frequency of the second harmonic of the pipe is 425 Hz.

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