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Leno4ka [110]
3 years ago
8

If a total force exerted by water in a container with a bottom area of 2 square meters is 450 newtons, what's the water pressure

at the bottom of the container?        A. 0.900 kPa   B. 0.225 kPa   C. 0.575 kPa   D. 0.300 kPa
Physics
2 answers:
m_a_m_a [10]3 years ago
7 0

its B 0.225kPa using the formula p=f/A then change the pascals into kpa

Ipatiy [6.2K]3 years ago
7 0

The Correct answer to this question for Penn Foster Students is: 0.225 kPa

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Answer:

  about 14.7°

Explanation:

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  sin(θ) = λ/a

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The wavelength of the sound is the speed of sound divided by the frequency:

  λ = (340 m/s)/(1300 Hz) ≈ 0.261538 m

Then the angle of interest is ...

  θ = arcsin(0.261538/1.03) ≈ 14.7°

At an angle of about 14.7°, someone outside the room will hear no sound.

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3 years ago
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The heat energy gained by the water in one minute is ?
kari74 [83]
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3 years ago
a spherical mirror is cut in half horizontally will an image be formed by the bottom half of the mirror how
monitta

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