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ludmilkaskok [199]
2 years ago
5

Nya has a cup of hot tea that she lets cool down for several minutes. What effect does cooling have on the tea?

Physics
1 answer:
Y_Kistochka [10]2 years ago
3 0

Answer:

<em>Its particles have less kinetic energy</em>

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The 360-turn primary coil of a step-down transformer is connected to an ac line that is 120 V (rms). The secondary coil is to su
ZanzabumX [31]

Answer:

N₂ = 19 turns

Explanation:

A transform is a system with two different windings where the variation of the magnetic beam is the same, if there are no losses in the system we can use Faraday's law

          V₁ = -N₁  \frac{d \Phi_B }{dt}

          v₂ = - N₂ \frac{d \Phi_B }{dt}

           \frac{V_1}{N_1} = \frac{V_2}{N_2}

in this case we look for the number of turns in the second winding

            N₂2 = N_1 \ \frac{ V_2}{V_1}

calculate us

           N₂ = 360  6.30/ 120

           N₂ = 18.9 turn

The number of turns must be an integer

           N₂ = 19 turns

8 0
2 years ago
There are several different models that represent compounds. One type of model is shown.
Mrac [35]

Answer: Option (a) is the correct answer.

Explanation:

A formula that represents how atoms are linked or joined together is known as a structural formula.

For example, the model given in the image (in question) represents arrangement of all the atoms. Therefore, it is a structural formula.

Whereas a chemical formula represents a compound along with ratio of compounds.

A space filling model and a ball-stick model is a three dimensional model. In space filling model atoms are represented by spheres whereas in ball stick model atoms are represented by ball and bonds are represented by stick.

5 0
3 years ago
Read 2 more answers
Light shines through a single slit whose width is 5.7 x 10-4 m. A diffraction pattern is formed on a flat screen located 4.0 m a
lilavasa [31]

Answer:

\lambda = 570\ nm

Explanation:

Given,

Width of slit, W = 5.7 x 10⁻⁴ m

Distance between central bright fringe, L = 4 m

distance between central bright fringe and first dark fringe, y = 4 mm

Diffraction angle

tan \theta = \dfrac{y}{L}

tan \theta = \dfrac{4}{4\times 10^3}

\theta = 0.0572

Now.

W sin \theta = m \lambda

m = 1

5.7 \times 10^{-4} \times sin (0.0572) = 1 \times \lambda

\lambda = 569.99 \times 10^{-9}\ m

\lambda = 570\ nm

4 0
3 years ago
What is Gravity?<br>PLEASE ANSWER ​
jolli1 [7]

Answer:

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.

<em><u>Please mark as brainliest</u></em>

Have a great day, be safe and healthy

Thank u  

XD

7 0
3 years ago
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He user of a machine applies force to the machine over the _____ distance.
gtnhenbr [62]
The blank distance is your answer

5 0
2 years ago
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