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Dovator [93]
3 years ago
13

A tornado warning means that the current weather conditions could produce a tornado. True or False

Physics
2 answers:
marissa [1.9K]3 years ago
5 0

Answer:

true

Explanation:

WARRIOR [948]3 years ago
4 0

true because it means that the cloud formation of a tornado has been already spotted.

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He discovered that the orbits of planets are ellipses.
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Answer:

Kepler

Explanation:

Kepler discovered that the orbits of planets are ellipses.

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Which three characteristics make iron a good blackbody radiator?
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A, C, and D

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a 100 kg gymnast comes to a stop after tumbling. her feet do -5000J of net work to stop her. Use the work-kinetic energy theorem
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W=ΔKE , W=-5000j
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A tuning fork generates sound waves with a frequency of 240 Hz. The waves travel in opposite directions along a hallway, are ref
Bingel [31]

Answer:

The phase difference between the reflected waves when they meet at the tuning fork is 159.29 rad.

Explanation:

Given that,

Frequency of sound wave = 240 Hz

Distance = 46.0 m

Distance of fork = 14 .0 m

We need to calculate the path difference

Using formula of path difference

\Delta x=2(L_{2}-L_{1})

Put the value into the formula

\Delta x =2((46.0-14.0)-14.0)

\Delta x=36\ m

We need to calculate the wavelength

Using formula of wavelength

\lambda=\dfrac{v}{f}

Put the value into the formula

\lambda=\dfrac{343}{240}

\lambda=1.42\ m

We need to calculate the phase difference

Using formula of the phase difference

\phi=\dfrac{2\pi}{\lambda}\times \delta x

Put the value into the formula

\phi=\dfrac{2\pi}{1.42}\times36

\phi=159.29\ rad

\phi\approx 68.2^{\circ}

Hence, The phase difference between the reflected waves when they meet at the tuning fork is 159.29 rad.

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3 years ago
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One day, as I was walking, I found some sandy soil beside the road.
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