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Lina20 [59]
3 years ago
8

A gas-powered lawnmower is rated at 98 db. how many times more intense is the sound of this mower than that of an electric-power

ed mower rated at 70 db?
Physics
1 answer:
givi [52]3 years ago
6 0
The gas- powered mower is

(98dB - 70dB) = 28 dB louder.

28 dB = 10^2.8

= 631 times as much sound power.
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The work done to pull the object 7.0 m is the total area under the graph from 0.0 m to 7.0 m, determined as 245 J.

<h3>Work done by the applied force</h3>

The area under force versus displacement graph is work done.

The total work done by pulling the object 7 m, can be grouped into two areas;

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A1 = ¹/₂ bh

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A2 = ¹/₂(large base + small base) x height

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Learn more about work done here: brainly.com/question/8119756

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A skateboarder traveling with an initial velocity 9.0 meters per second,
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Answer:

25m/s

Steps:

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<em />

Second, we substitute the values given:

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