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mina [271]
3 years ago
12

How many neutrons are present in an atom of Argon-38

Physics
2 answers:
Katen [24]3 years ago
6 0

Answer:

since 22 isnt an option id pick d

Explanation:

Free_Kalibri [48]3 years ago
3 0

Answer:

22

Hope this helps :)

Have a great day !

5INGH

Explanation:

18 protons so 18 electrons

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A tray filled with ice is removed from the freezer. After a short period of time, the ice begins to melt.
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Which of the following devices is associated with the reception of radio signals?
ki77a [65]
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Two parallel-plate capacitors have the same plate area, but the plate gap in capacitor 1 is twice as big as capacitor 2. If capa
-BARSIC- [3]

Answer:

Capacitance of the second capacitor = 2C

Explanation:

\texttt{Capacitance, C}=\frac{\varepsilon_0A}{d}

Where A is the area, d is the gap between plates and ε₀ is the dielectric constant.

Let C₁ be the capacitance of first capacitor with area A₁ and gap between plates d₁.

We have    

              \texttt{Capacitance, C}_1=\frac{\varepsilon_0A_1}{d_1}=C

Similarly for capacitor 2

               \texttt{Capacitance, C}_2=\frac{\varepsilon_0A_2}{d_2}=\frac{\varepsilon_0A_1}{\frac{d_1}{2}}=2\times \frac{\varepsilon_0A_1}{d_1}=2C

Capacitance of the second capacitor = 2C

6 0
3 years ago
Pls help I’m being timed!!
Firdavs [7]

Answer:

B

Explanation:

Heat increase molecular motion

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In regions where few species existed before or where species were wiped out what occurs?
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