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1 year ago

Sound travels through a

Physics

2 answers:

attashe74 [19]1 year ago

8 0

Answer:

A.3.64 m

Explanation:

Because

v=(fλ)
(1382)=(380)λ
λ=3.637m~3.64m

where ,v=velocity

f=frequency 

λ=wave length 

icang [17]1 year ago

6 0

Answer:

3.64

Explanation:

the formula is Already provided which is Velocity(m/s)= frequency (HZ) × wavelength

making wavelength stand alone

wavelength= velocity/ frequency

wavelength= 1382/380

wavelength= 3.64

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A series circuit has a capacitor of 0.25 × 10⁻⁶ F, a resistor of 5 × 10³ Ω, and an inductor of 1H. The initial charge on the cap

viktelen [127]

Answer:

$q = (3 + e^{-4000 t} - 4 e^{-1000 t})\times 10^{-6}$

at t = 0.001 we have

$q = 1.55 \times 10^{-6} C$

at t = 0.01

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Explanation:

As we know that they are in series so the voltage across all three will be sum of all individual voltages

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now we will have

$iR + L\frac{di}{dt} + \frac{q}{C} = 12 V$

now we have

$1\frac{d^2q}{dt^2} + (5 \times 10^3) \frac{dq}{dt} + \frac{q}{0.25 \times 10^{-6}} = 12$

So we will have

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3 years ago

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3 years ago

A football player with a mass of 85 kg wears a uniform and helmet that have a mass of 4.5 kg. The football player moves at 2.1 m

DochEvi [55]

The answer would be 187.95 kg.m/s.

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Not the question is asking what is the total momentum of the football player and uniform. So we need to first get the combined mass of the football player and the uniform.

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Sound travels through a ​

Sound travels through a