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Readme [11.4K]
3 years ago
7

What is the wavelength of a wave whose velocity is 8 m/s and frequency is 2 waves/second?

Physics
1 answer:
Maru [420]3 years ago
3 0

Wavelength = (speed) / (frequency)

Wavelength = (8 m/s) / (2/s)

Can you finish it off from this point ?

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The velocity of a particle moving along the x-axis varies with time according to v(t) = A + Bt−1 , where A = 2 m/s, B = 0.25 m,
kondaur [170]

Answer:

a= -2\ m/s^2

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v=A+Bt^{-1}

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To find acceleration :

we know that

a=\dfrac{dv}{dt}

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a=-0.5\times 2^{-2}

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Acceleration at t= 5 s

a=-0.5\times 5^{-2}

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We know that

v=\dfrac{dx}{dt}

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\int_{0}^{x}dx=\int_{1}^{2} \left(2+0.25\dfrac{1}{t}\right)dt

x=\left [2t+0.25\ lnt \right ]_{1}^{2}

x=2+0.25 ln2

x=2.17 m

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\int_{0}^{x}dx=\int_{1}^{5} \left(2+0.25\dfrac{1}{t}\right)dt

x=\left [2t+0.25\ lnt \right ]_{1}^{5}

x=8+0.25 ln5

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3 years ago
Answer it or not your choice
Zigmanuir [339]

Answer:

Explanation:

(a) 0 to 90

(b) 90 to 180

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2 years ago
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