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2 years ago

SCIENCE

Physics

2 answers:

Alexxandr [17]2 years ago

6 0

It’s liquid i think :)

slava [35]2 years ago

5 0

The answer is liquid because, the core is known to be solid but with the heat come high temp liquid

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What is the wavelength of a sound wave with a speed of 331 m/s and a frequency of 500 Hz?

ludmilkaskok [199]

Answer:

0.777m

Explanation:

The sound wave has a wavelength of 0.773m.

Explanation:

To solve this problem we have to use the wave equation that is given below:

We know the frequency and the velocity, both of which have good units. All we have to do is rearrange the equation and solve for

λ :

λ = v f

Let's plug in our given values and see what we get!

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Hope this helps, Mark as brainliest if u want

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2 years ago

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mash [69]

Answer:

$\Delta x = v_0 t + \frac{1}{2}at^2$

Explanation:

To solve this problem, we can use the following suvat equation:

$\Delta x = v_0 t + \frac{1}{2}at^2$

where

$\Delta x$ is the vertical displacement of the frog

$v_0$ is the initial vertical velocity

t is the time

a is the acceleration

We have chosen this formula because apart from $v_0$ , all the other quantities are known. In fact:

$\Delta x =0.1 m$ is the vertical displacement

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$v_0 = \frac{\Delta x-\frac{1}{2}at^2}{t}=\frac{0.1-\frac{1}{2}(-9.8)(2)^2}{2}=9.85 m/s$

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3 years ago

A rock is dropped from a sea cliff and hits the water 3.2s later. How high is the cliff? How long would it take sound to travel

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A rock is dropped from a sea cliff and hits the water 3.2s later. How high is the cliff?

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t = 50.23 / 343 m/s
t = 0.15 s

How long would it take light to travel this distance?
t = 50.23 / 299 792 458 m / s
t = 1.68x10^-7 s

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2 years ago

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Answer:

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