3 years ago

Pls help me with this one :))

Physics

1 answer:

zalisa [80]3 years ago

8 0

Answer:

Row A is correct

Explanation:

both conduction and convection require mass to complete any heat transfer. A vacuum contains no mass

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What is the speed of a wave that has a frequency of 45 Hz and a wavelength of 0.1 meters?

Yuri [45]

<span>λν=c
(wavelength x frequency = speed)

speed = 45 x 0.1
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3 years ago

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Two speakers are spaced 15 m apart and are both producing an identical sound wave. You are standing at a spot as pictured. What

IgorLugansk [536]

Answer:

Frequency is $213.04\ s^{-1}.$

Explanation:

Distance between source 1 from the receiver , $S_1 =\sqrt{10^2+22^2}=24.17\ m.$

Distance between source 2 from the receiver , $S_2=\sqrt{5^2+22^2}=22.56\ m.$

Now ,

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Hence, this is the required solution.

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3 years ago

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jolli1 [7]

Answer:

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Pls help me with this one :)) ​

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