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elena-14-01-66 [18.8K]
3 years ago
15

What was the main aim behind Wegener's continental drift theory?

Physics
1 answer:
Aleks [24]3 years ago
8 0
D.all of the above is the answer for this question
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Clarify what you mean by ratios?
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What is the difference between heat exhaustion and heat stroke?
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Sound enters the ear, travels through the auditory canal, and reaches the eardrum. The auditory canal is approximately a tube op
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Answer:

The fundamental frequency of can is 2.7 kHz.                          

Explanation:

Given that,

A typical length for the auditory canal in an adult is about 3.1 cm, l = 3.1 cm

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We need to find the fundamental frequency of the canal. For a tube open at only one end, the fundamental frequency is given by :

f=\dfrac{v}{4l}\\\\f=\dfrac{336}{4\times 3.1\times 10^{-2}}\\\\f=2709.67\ Hz\\\\f=2.7\ kHz

So, the fundamental frequency of can is 2.7 kHz. Hence, this is the required solution.

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3 years ago
When applying a horizontal force of 30N, an object of mass 6 kg accelerates at 4m/s2. The force of friction on the surface must
Rus_ich [418]
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F = (6kg)(4m/s^2) = 24N

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30N-24N = 6N

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The Hertzsprung-Russel diagram is used to show the relationship between which two characteristics of stars?
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