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stiks02 [169]
3 years ago
5

The Egyptians and Greek shared which belief about preparing for important dreams

Physics
2 answers:
Mamont248 [21]3 years ago
8 0
<span>Both the Egyptians as well as the Greeks had viewed favourably the inclusion of dreams in our daily life and had an interest in them which dictated their desire to learn about them.</span>
Alchen [17]3 years ago
8 0

Answer:

B. Dream preparation increased the likelihood of getting the right dream.

Explanation:

got it right on the quiz.

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It is desired to lay off certain horizontal distances for building layouts. The length of the tapes are not 100.00 ft. Determine
Elodia [21]

Answer:

725.44 by 180.11

Explanation:

If a 100-ft tape was used, the number of such tapes in 725 ft would be \dfrac{725}{100}=7.25

And in 180 ft would be \dfrac{180}{100}=1.8

The same number of tapes would be used for the incorrect tape to give the false dimension. This would be

100.06\times7.25 by 100.06\times1.8 =

725.44 by 180.11

6 0
3 years ago
Three resistors connected in series have potential differences across them labeled /\V1 , /\V2 , and /\V3. What expresses the po
Brrunno [24]

Answer:

\Delta V=\Delta V_1+\Delta V_2+\Delta V_3

Explanation:

We are given that three resistors R1, R2 and R3 are connected in series.

Let

Potential difference across R_1=\Delta V_1

Potential difference across R_2=\Delta V_2

Potential difference across R_3=\Delta V_3

We know that in series  combination

Potential difference ,V=V_1+V_2+V_3

Using the formula

\Delta V=\Delta V_1+\Delta V_2+\Delta V_3

Hence, this is required expression for potential difference.

3 0
4 years ago
What is centripental force?
agasfer [191]

Answer:

Centripetal force is the force that is necessary to keep an object moving in a curved path and that is directed inward towards the center of rotation.

Explanation:

Definition of centripetal force:

Centripetal force is the force that is necessary to keep an object moving in a curved path and that is directed inward towards the center of rotation.

Example of centripetal force

A string on the end of which a stone is whirled about exerts a centripetal force on the stone.

The diagram is shown below

Where

The centripetal forces acting towards the centre C that is \vec {AC}

and the direction is from A to C.

And the stone is moving in a circular motion with center as C.

7 0
3 years ago
3. Which form of radiation is used to kill microorganisms?
inn [45]

Answer:

d

Explanation:

uv is safe for humans but bad for bacteria etc... at least I think. I'm sorry if I'm wrong

4 0
3 years ago
1. A heat engine operates between two reservoirs at T2 = 600 K and T1 = 350 K. It takes in 1.00 x 103 J of energy from the highe
Alex73 [517]

Answer:

\Delta S_u=2.1429\ J.K^{-1}

W_c=416.67\ J

Explanation:

Given:

temperature of source reservoir, T_H=600\ K

temperature of sink reservoir, T_L=350\ K

energy absorbed from the source, Q_{in}=1000\ J

work done, W=250\ J

a.

<u>Now change in entropy of the surrounding:</u>

\Delta S_u=\frac{dQ_L}{T_L}

<em>Since heat engine is a device that absorbs heat from a high temperature reservoir and does some work giving out heat in the universe as the byproduct.</em>

\Delta S_u=\frac{Q_H-W}{T_L}

\Delta S_u=\frac{1000-250}{350}

\Delta S_u=2.1429\ J.K^{-1}

b.

<u>We know Carnot efficiency is given as:</u>

\eta_c=1-\frac{T_L}{T_H}

\eta_c=1-\frac{350}{600}

\eta_c=0.4167

<u>Now the Carnot work done:</u>

W_c=Q_H\times \eta_c

W_c=1000\times 0.4167

W_c=416.67\ J .......................(1)

c.

From eq. (1) we have the Carnot work, so the difference:

\Delta W=W_c-W

\Delta W=416.67-250

\Delta W=166.67\ J

Now, we find:

T_L.\Delta S_u=350\times 2.1429

5 0
3 years ago
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