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nexus9112 [7]
3 years ago
6

In Science, what is a model?

Physics
2 answers:
abruzzese [7]3 years ago
8 0

I'm not sure about the "in nature" part but i think its A

Citrus2011 [14]3 years ago
8 0

Pretty sure it’s A

Hope this helps

-AaronWiseIsBae

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Which statements correctly describe the properties of air? Select three options. Air has mass but no weight. Air pressure is cre
jolli1 [7]

Answer:

2,4,5

Air pressure is created by the weight of the atmosphere pushing on Earth’s surface.

Denser air is heavier than less dense air.

Air is less dense at higher altitudes.

4 0
3 years ago
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The waves with the lowest energy and lowest frequencies of the electromagnetic spectrum are the
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5 0
3 years ago
What happens to electric charges within a conductor when a charged object is brought close to it
Agata [3.3K]
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8 0
3 years ago
Rainwater draining from a neighborhood street initially travels at 4 ft/s through a pipe with a cross-sectional area of 15.7 ft2
Fudgin [204]

Answer:

The  velocity  is v_2  =  0.96 \ ft/s

Explanation:

From the question we are told that

   The initial speed is  v_1  =  4 \ ft/s

   The  cross -sectional area of the first pipe is  A_1  =  15.7 \ ft

   The  cross -sectional area of the second pipe is A_2 =  65.4 \  ft

Generally from continuity equation we have that

     A_1 * v_1 =  A_2  * v_2

So  

     v_2  =  \frac{A_1 *  v_1  }{A_2 }

=>   v_2  =  \frac{15.7  *  4  }{65.4 }

=>   v_2  =  0.96 \ ft/s

6 0
3 years ago
The density is 1.5 g/cm^3. the mass is 1500. what is the volume
Naddik [55]
The density of an object can be calculated using the formula Density = Mass/Volume. In this case however we are searching for the volume and must rearrange the formula so that we are solving for the volume. If you multiply both sides by volume and then divide both sides by mass you end up with the equation Volume = Mass/Density.

Volume = 1500g/1.5g/cm^3
Volume = 1000 cm^3
8 0
3 years ago
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