Conclusions related to historical events are limited to subjective evaluation of the existing evidence because _____.

Physics

1 answer:

aev [14]3 years ago

3 0

Answer: they can not be replicated or repeated.

Explanation:

A historical events are opened for more study and research. So, they can be repeated for more study but with reference to the documents written about that event in a manner in which others are permitted to.

Where as, the conclusions related to historical events are limited to the subjective evaluation based on the different outcomes draw as a result of individual findings.

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Please answer of this question

Bogdan [553]

Answer:

$\frac{\pi }{15}$ m

Explanation:

At 10am, the minute hand and hour hand are ' 2 hours apart', since the minute hand is at 12pm and hour hand is at 10am.

Angle between the two hands = 2/12 * 360

= 60°

Arc Length = $2\pi r(\frac{60}{360} )$

= $2\pi (0.2)(\frac{1}{6} )\\= \frac{\pi }{15} m$

8 0

2 years ago

you are standing on top of a 344 m tall building. A drone operated by your friend is headed straight down, at a speed of 37.0 m/

Kazeer [188]

Answer:

v = 74.0m/s

Explanation:

Look at the photo.

5 0

3 years ago

Since sinusoidal waves are cyclical, a particular phase difference between two waves is identical to that phase difference plus

poizon [28]

Answer:

For destructive interference phase difference is

$(2n+1)\pi$ where n∈ Whole numbers

Explanation:

For sinusoidal wave the interference affects the resultant intensity of the waves.

In the given example we have two waves interfering at a phase difference of $\frac{\pi}{4}$ would lead to a constructive interference giving maximum amplitude at at the RMS value of the amplitude in resultant.

Also the effect is same as having a phase difference of $( \frac{\pi}{4} + 2\pi)$ because after each 2π the waves repeat itself.

<em>In case of destructive interference the waves will be out of phase i.e. the amplitude vectors will be equally opposite in the direction at the same place on the same time as shown in figure.</em>

They have a phase difference of $\pi$ or which is same as $(2\pi+\pi)$