3 years ago

Distinguish between concave mirror and convex mirror

Physics

1 answer:

lisabon 2012 [21]3 years ago

3 0

Answer:

Concave mirror makes someone looking at it look dwarf or short, while convex mirror stretches the person making the person look weird.

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A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpen

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Answer:

r = 22.3 cm

Explanation:

given,

angular speed = 45 rev/s

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angular velocity =

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ω = 2 π x 45

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we know,

v = r ω

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erastova [34]

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3 years ago

What is the resultant of a pair of one pound forces at right angles to each other?

OleMash [197]

Answer:

$F_R=\sqrt{2} \ pound.force$

Explanation:

Given that there are two force of 1 pound each at right angles to each other.

The from the vector law of addition:

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where:

$F_R=$ resultant force

$F_1\ \&\ F_2$ be the two of the forces to be added.

$F_R=\sqrt{1^2+1^2}$

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true

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3 years ago

Distinguish between concave mirror and convex mirror ​

Distinguish between concave mirror and convex mirror