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KIM [24]
3 years ago
8

What is the sound intensity level in a car when the sound intensity is 0.525 μW/m2 ? Use I0 = 1.00×10−12 W/m2 for the reference

intensity.
Physics
1 answer:
never [62]3 years ago
8 0

Answer:

The sound intensity level in the car is 57.2 dB.

Explanation:

Sound intensity level in decibels, β = 10 log (I/I₀); where I = 0.525 × 10⁻⁶ W/m², I₀ = 1.0 × 10⁻¹² W/m²

β (dB) = 10 log ((0.525 × 10⁻⁶)/(1.0 × 10⁻¹²)) = 10 × 5.72 = 57.2 dB

Hope this Helps!!!

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Answer:

T = 2.4 + 2.4 = 4.8 [s]

Explanation:

In order to solve this problem, we must use the following kinematics equation and calculate the acceleration value.

x=x_{o} +v_{o}*t+(\frac{1}{2})*a*t^{2}

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t = time = 2.4 [s]

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We can use the same equation to find the time.

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3 years ago
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Answer:

<h3>1.01 s</h3>

Explanation:

Using the equation of motion S = ut+1/2gt² to solve the problem where;

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Substituting the given parameter into the formula to get the time t we have;

5 = 0(t)+1/2(9.81)t²

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t = √1.019

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<em>Hence it will take 1.01 secs for me to catch the chocolate bar</em>

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C → A + B

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AB + C → AC + B

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