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Ainat [17]
3 years ago
7

Example of optical object​

Physics
2 answers:
Alik [6]3 years ago
5 0

Answer:

Telescope,cameras

Hope it helped

alex41 [277]3 years ago
5 0
Telescopes&cameras//
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Answer:

C) 350 m/s N

Explanation:

Velocity is measured in miles per hour or metres per second.

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____________ are manufactured by the brain to help relieve pain. Ventricles Epinephrines Endorphins Phalanges
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It's Endorphins. That's a pain killer produced by the brain.

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If a transmission line in a cold climate collects ice, the increased diameter tends to cause vortex formation in a passing wind.
AleksAgata [21]

Answer:

a) f_1=5.587Hz

b) f_{n+1}-f_n=5.587Hz

Explanation:

The frequency of the n^{th} harmonic of a vibrating string of length <em>L, </em>linear density \mu under a tension <em>T</em> is given by the formula:

f_n=\frac{n}{2L} \sqrt{\frac{T}{\mu}

a) So for the <em>fundamental mode</em> (n=1) we have, substituting our values:

f_1=\frac{1}{2(347m)} \sqrt{\frac{65.4\times10^6N}{4.35kg/m}}=5.587Hz

b) The <em>frequency difference</em> between successive modes is the fundamental frequency, since:

f_{n+1}-f_n=\frac{n+1}{2L} \sqrt{\frac{T}{\mu}}-\frac{n}{2L} \sqrt{\frac{T}{\mu}}=(n+1-n)\frac{1}{2L} \sqrt{\frac{T}{\mu}}=\frac{n}{2L} \sqrt{\frac{T}{\mu}}=f_1=5.587Hz

3 0
3 years ago
Plan an experiment to measure the ideal mechanical advantage of a three-hole punch. (a) What materials would you need? (b) What
Vaselesa [24]

Answer:

A) Three hole punch and either a layered plastic or paper

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<u>a) Materials involved includes :</u>

Three hole punch and either a layered plastic or paper

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Identify the points where they act

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The mechanical advantage = output force / input force

step one:  Identify the lengths involved

assuming no friction or relatively small friction \

mechanical advantage can be calculated as : Length of input arm / length of output arm = L1/ L2

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A car travels 150 meters East of its original starting position in 15s. What is the cars velocity?​
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it is 347

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