Every 6 seconds a pendulum completes 1 cycle. What are the period and frequency of this pendulum?

Physics

1 answer:

Kruka [31]3 years ago

8 0

Multiply 6 x 60 to get the frequency.

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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?

Makovka662 [10]

Answer:

magnification will be -0.025

Explanation:

We have given the radius of curvature = 12 cm

And object distance = 3 m

So focal length $f=\frac{R}{2}=\frac{12}{2}=6cm$

Now for mirror we know that $\frac{1}{f}=\frac{1}{u}+\frac{1}{v}$

So $\frac{1}{0.06}=\frac{1}{3}+\frac{1}{v}$

$16.66-0.333=\frac{1}{v}$

v = 0.750 m

Now magnification of the mirror is $m=\frac{-v}{u}=\frac{-0.750}{3}=-0.025$

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dem82 [27]

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aliya0001 [1]

Here are the ones that I know about
and can think of just now:

-- wind
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-- nuclear
-- tidal
-- hydro
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3 years ago

Heyyyy help ! <br><br> What’s the electromagnetic wave that has a wavelength between 1mm and 30cm

LenaWriter [7]

You've got some UHF radio waves at the long end of that range. But most of the range consists of <em>microwaves</em>.

For example: In the US, the "microwave oven" kitchen appliance cooks with radiation at a wavelength of about 12.2 cm .

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