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saul85 [17]
3 years ago
13

Sound is produced by

Physics
2 answers:
elena-14-01-66 [18.8K]3 years ago
7 0
Sound is produced when something <span>vibrates.


</span>
zavuch27 [327]3 years ago
5 0
Vibrations it's produced
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URGENT <br> Find the total<br> equivalent<br> resistance for the<br> circuit.
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Answer:

20 + 10 = 30 \\ 30and50 in \: parallel \\  =  \frac{50 \times 30}{50 + 30}  \\  =  \frac{1500}{80}  \\ 18.75 \\ 30nd40parallel \\  \frac{30 \times 40}{70}  \\  \frac{1200}{70}  = 17.143 \\ total = 18.75 + 17.143 = 35.893ohm \\ thank \: u

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How is tidal energy obtained
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3 years ago
A police car is located 50 feet to the side of a straight road. A red car is driving along the road in the direction of the poli
NNADVOKAT [17]

Answer:74.33 feet per sec

Explanation:

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Red car is 140 feet up the road

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From figure

x^2+y^2=z^2

z=\sqrt{140^2+50^2}

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as the red car is moving

therefore its velocity magnitude is given by

\frac{\mathrm{d} x}{\mathrm{d} t}

2x\times \frac{\mathrm{d} x}{\mathrm{d} t}+0=2z\frac{\mathrm{d} z}{\mathrm{d} t}

x\frac{\mathrm{d} x}{\mathrm{d} t}=z\frac{\mathrm{d} z}{\mathrm{d} t}

140\times \frac{\mathrm{d} x}{\mathrm{d} t}=148.66\times 70

\frac{\mathrm{d} x}{\mathrm{d} t}=74.33 feet\ per\ sec

6 0
3 years ago
What are groups 1,2 and 3 examples of on the periodic table
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4 0
2 years ago
A car travels at 60 miles per hour. How much time does it take the car to travel 30 miles? Select one: a. 1 hour b. 1/2 hour c.
andreev551 [17]
The car is traveling at 60 miles per hour. Theoretically, at this pace, It'll take (B.), 1/2 an hour.


Brainliest?


Hope I helped! ^-^
4 0
3 years ago
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