what do you think is the purpose of a periscope? Are there any other uses for periscopes besides for submarines?

1 answer:

3 0

Military personnel also use periscopes in some gun turrets and in armoured vehicles. More complex periscopes using prisms or advanced fibre optics instead of mirrors and providing magnification operate on submarines and in various fields of science

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Four capacitors with capacitance 3.0 pF, 2.0 pF, 5.0 pF and X pF are connected in series to each other. If the equivalent capaci

bagirrra123 [75]

Answer:

Explanation:

If unknown capacitance C1, C2, C3 and C4 are connected in series to one another, their equivalent capacitance of the circuit will be expressed as shown

$\frac{1}{C_t} = \frac{1}{C_1} +\frac{1}{C_2} +\frac{1}{C_3} +\frac{1}{C_4} \\$

Given the capacitance's 3.0 pF, 2.0 pF, 5.0 pF and X pF connected in series to each other. If the equivalent capacitance of the circuit is 0.83 pF, then to get X, we will apply the formula above;

$\frac{1}{0.83} = \frac{1}{3.0} +\frac{1}{2.0} +\frac{1}{5.0} +\frac{1}{C_4} \\\\\\1.205 = 0.333+0.5+0.2+\frac{1}{C_4} \\\\1.205 = 1.033 + \frac{1}{C_4} \\\\\frac{1}{C_4} = 1.205-1.033\\\\\frac{1}{C_4} = 0.172\\\\C_4 = \frac{1}{0.172}\\ \\C_4 = 5.8pF\\\\$

C₄ ≈ 6pF

Hence the value of the X capacitor is approximately 6pF

8 0

3 years ago

Which object is moving faster?<br> A

Amiraneli [1.4K]

Answer:

Explanation:

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2 years ago

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Write 3 statements that support the conclusion that the properties of a sample of an element are the properties of its atoms

Serhud [2]

Answer:An atom is the smallest unit of matter that retains all of the chemical properties of an ... facts remain true even when the atoms or molecules are part of a living thing. ... A gold atom gets its properties from the tiny subatomic particles it's made up of. ... Most atoms contain all three of these types of subatomic particles—protons, ...

Explanation:

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2 years ago

light traveling in a medium with a refractive index 1.28 is incident on a plate of another medium with index of refraction 2.22.

balu736 [363]

Answer: The angle of incidence at which the light will fully be polarized is 60°

Explanation:

To find out the angle of incidence θB for which reflected light is fully polarized we use the equation

n1 sinθB = n2sin(90°− θB) = n 2cosθB

Since n1 is the index of refraction for medium 1 and n2 is the medium of refraction for medium 2 we then solve the equation to get

θB = tan −1 (n2/n1)

= tan −1 (2.22/1.28)=60.0°