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3 years ago

Are Constellations based on the magnitude of stars.

Physics

2 answers:

salantis [7]3 years ago

8 0

no they are not they are mostly based off roman and Greek Mithos

Nikolay [14]3 years ago

4 0

Constellations are based off of many Greek and Roman fables. Many of their gods and beliefs are pictured in the stars, which is where we get most of our constellations. Hope this helps!

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How far must you be from a 110 W speaker to have an intensity of 0.0439 W/m^2? (Treat the speaker as a point source.)

Lina20 [59]

Answer:

$d=14.12m$

Explanation:

Assume a point sound source that emits a sound power<em> P </em>(in W) evenly in all directions of space. Let us also assume that the medium does not absorb this sound power when it passes through it. At a distance<em> d </em>from the source this power will have been evenly distributed over the surface of a sphere of radius <em>d</em>. Therefore, the acoustic intensity I at distance d will be worth:

$I=\frac{P}{4\pi d^{2}}$

This is the expression of the so-called<em> law of the square of distance: "the intensity is inversely proportional to the square of the distance to the source (considered punctual)".</em>

$I=0.0439 \frac{W}{ m^{2}}$

$P=110W$

$d=\sqrt { \frac{P}{4 \pi\\I}$

$d=\sqrt{ \frac{110}{ 4\pi (0,0439)} }$

$d=\sqrt{{199.39}$

$d=14.12m$

3 0

3 years ago

What is the current produced by the solar cells of a pocket calculator through which 4.00 C of charge passes in 4.00 hr? Give yo

AfilCa [17]

The average current passing through a device is given by:

I = Q/Δt

I is the average current

Q is the amount of charge that has passed through the device

Δt is the amount of elapsed time

Given values:

Q = 4.00C

Δt = 4.00hr = 14400s

Plug in the values and solve for I:

I = 4.00/14400

I = 0.000277777778A

I = 0.278mA

3 0

3 years ago

anice measured the mass and the volume of an object. She then determined the density of the object by dividing the object’s mass

Debora [2.8K]

<h2>Answer: g/cm³</h2>

Explanation:

Since mass is being divided by volume, the units must also represent this ratio. Since mass can be given in grams and volume in cubic centimeters, then g/cm³ is the likely answer in this case.

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3 years ago

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Mazyrski [523]

Answer: Legitimate

Explanation: Legimate power is directly related to an internalized value or norm and is probably the most complex of the power bases

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3 years ago

If the amount of matter of something is increased

lakkis [162]

Answer:

I need the question first lol

Explanation:

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3 years ago