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Semmy [17]
2 years ago
11

You check the weather and find that the winds are coming are coming from the west at 15 miles per hour. This information describ

es wind's velocity, direction, acceleration, or speed?
Physics
2 answers:
aalyn [17]2 years ago
7 0
Velocity
It is not showing acceleration, or changes in speed
It is showing direction, but not only that
It is showing speed, but not only that

It is showing speed and direction, which is Velocity
Ludmilka [50]2 years ago
5 0

Answer:

velocity

Explanation:

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A steel wire in a piano has a length of 0.680 m and a mass of 4.600 ✕ 10⁻³ kg. To what tension must this wire be stretched so th
garik1379 [7]

Answer:

728 N

Explanation:

L = length of the wire = 0.680 m

m = mass of the steel wire = 0.0046 kg

f = Fundamental frequency = 261.6 Hz

T = tension force in the steel wire

Fundamental frequency in wire is given as

f = \frac{1}{2L} \sqrt{\frac{TL}{m} } \\261.6 = \frac{1}{2(0.680)} \sqrt{\frac{T(0.80)}{0.0046} }\\(2) (0.680) (261.6) = \sqrt{\frac{T(0.80)}{0.0046} }\\355.8 = \sqrt{\frac{T(0.80)}{0.0046} }\\355.8^{2} = \frac{T(0.80)}{0.0046}\\T = \frac{(355.8^{2}(0.0046))}{0.80} \\T = 728 N

3 0
3 years ago
How do electric motors create movement?
melomori [17]

Answer:

D by spinning magnets to induce electric current.

7 0
2 years ago
Which one is right??
Ulleksa [173]

Answer:

Evaporation of water

Explanation:

5 0
2 years ago
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The number of vacancies in some hypothetical metal increases by a factor of 5 when the temperature is increased from 1080 K to 1
Elena L [17]

Answer:

E = 15.7 KJ/mol

Explanation:

The number of vacancies in a metal is given by

      n = n₀ e^{-E/KT}

They tell us that

     n = 5 no

We replace

      5 n₀ = n₀   e^{-E/KT}

      -E / KT = ln 5

       E = KT ln 5

       E = 1,381 10⁻²³  1170 ln 5

        E = 2.6 10⁻²⁰ J

To take (J / mol) we multiply between Avogadro's number

        E = 2.6 10⁻²⁰ 6.022 10²³

        E = 1.57 10⁴ J / mol

        E = 15.7 KJ/mol

6 0
3 years ago
Why is the motion of simple pendulum not strictly a simple harmonic motion​
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Sin0) is not exactly in the direction of equilibrium position. But the condition of S.H.M. Is restoring force must directed to the equilibrium position in all instant
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2 years ago
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