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Mila [183]
3 years ago
13

Examples of angular motion​

Physics
2 answers:
MakcuM [25]3 years ago
6 0

Answer:

the swing of a baseball bat

the leverage on a hokey stick

virtually any club,stick,bat,racket that is swung

a runner on a circular path

ohaa [14]3 years ago
3 0

Answer:

A figure skater doing a double axle

The swing of a baseball bat

The leverage on a hockey stick

hope it helps

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A 60 year old person has a threshold of hearing of 95.0 dB for a sound with frequency f=10,000 Hz. By what factor must the inten
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The intensity increased by a factor of 158489

Explanation:

Given that,

Sound level = 95.0 dB

Sound level = 43.0 dB

Frequency = 10000 Hz

We need to calculate the ratio of sound intensity

Using formula of sound level

sound\ level =10 log\dfrac{I}{I_{0}}

Put the value into the formula

95.0=10\ log\dfrac{I_{1}}{I_{0}}...(I)

43.0=10\ log\dfrac{I_{2}}{I_{0}}.....(II)

Subtracting these equations

52.0=10\ log\dfrac{I_{1}}{I_{2}}

\log\dfrac{I_{1}}{I_{2}}=5.2

Taking inverse log

\dfrac{I_{1}}{I_{2}}=10^{5.2}

\dfrac{I_{1}}{I_{2}}=158489

Hence, The intensity increased by a factor of 158489

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3 years ago
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A square plate of copper with 55.0 cm sides has no net charge and is placed in a region of uniform electric field of 82.0 kN/C d
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Answer

given,

Side of copper plate, L = 55 cm

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a) Charge density,σ = ?

  using expression of charge density

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now,

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change density on the plates are 725.7 nC/m² and -725.7 nC/m²

b) Total change on each faces

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Hence, charges on the faces of the plate are 219.52 nC and -219.52 nC

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