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tiny-mole [99]
3 years ago
12

Which of the following does not use an internal combustion enginea. a cannonb. a lawnmowerc. a windmilld. a car

Physics
2 answers:
lara31 [8.8K]3 years ago
6 0
The windmill does not use a combustion engine.
damaskus [11]3 years ago
3 0

Answer:

c) a Windmill

Explanation:

A lawn mower may have a two stroke or a 4 stroke internal combustion engine.

Wind mill is a device that runs with wind. When wind blows, wings of the wind mill rotate. Wind mills are used to generate electricity. It is a renewable source of energy that requires large farms or open space for their establishment and maintenance.

In a cannon gun powder is ignited ,  not with the help of an engine , but a different method for its ignition.

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A convex security mirror has a radius of curvature of 12.0 cm. What is the magnification of a pare 3.0 m from the mirror?
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magnification will be -0.025

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