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Lelu [443]
3 years ago
8

When two air masses with different characteristics meet what happens

Physics
1 answer:
lyudmila [28]3 years ago
3 0

If the boundary between the cold and warm air masses doesn't move, it is called a stationary front. The boundary where a cold air mass meets a cool air mass under a warm air mass is called an occluded front. At a front, the weather is usually unsettled and stormy, and precipitation is common.

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Biologists use optical tweezers to manipulate micron-sized objects using a beam of light. In this technique, a laser beam is foc
sleet_krkn [62]

Answer:

a)   I = 1,894 10¹⁰ W / m², b)  E = 1.376 10⁵ N / C

Explanation:

a) intensity is defined as energy per unit area per unit time

          I = P / A

let's reduce the magnitudes to the SI system

         P = 10 mW = 10 10⁻³ W

         d = 0.82 μm = 0.82 10⁻⁶ m

the laser area is

         A =π r² = π d²/4

         A =π (0.82 10⁻⁶)²/4

         A = 5.28 10⁻¹³ m²

we calculate

          I = \frac{10 \ 10^{-3}}{5.28 \ 10^{-13}}

          I = 1,894 10¹⁰ W / m²

b) average intensity and electric field are related

          I = E * E

          E = √I

          E = \sqrt{1.894 \ 10^{10}}

          E = 1.376 10⁵ N / C

4 0
3 years ago
What does the nervous system allow?
pentagon [3]
To pass signals around the bod from the brain
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3 years ago
Find the equivalent resistance of this
MAXImum [283]

Explanation:

1/R = 1/R1 + 1/ R2

1/R = 1/960 + 1/640

1/R = 5 / 1920

<h3> R = 384 ohm </h3>

So , Req = 384 + R3

Req = 384 + 180

<h3> Req = 564 ohm</h3>

\huge\red{A}\pink{N}\orange{S}{W}\blue{E}\green{R}

<h2> Req = 564 ohm</h2>

7 0
2 years ago
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