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3 years ago

A circuit has a voltage drop of 12 V across a 30 2 resistor that carries a

Physics

2 answers:

Xelga [282]3 years ago

6 0

Answer:

9.6

Explanation:

Kay [80]3 years ago

4 0

Answer:

Explanation:

V=12v

I=0.8A

P=VI

=(12)(0.8)

=9.6W

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Need help ASAP <br> Thankss + BRAINLIST only for correct answer

spayn [35]

Answer:

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2 years ago

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Two objects are dropped from rest from the same height. Object A falls through a distance Da and during a time t, and object B f

stiv31 [10]

Answer:

Da=(1/4)Db

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration due to gravity = 9.81 m/s²

When s = Da, t = t

$s=ut+\frac{1}{2}at^2\\\Rightarrow Da=0\times t+\frac{1}{2}\times a\times t^2\\\Rightarrow Da=\frac{1}{2}at^2$

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3 years ago

Using Rayleigh's criterion, what is the smallest separation between two pointlike objects that a person could clearly resolve at

atroni [7]

Answer:

y = 52.44 10⁻⁶ m

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Based on this principle we must find the angle of the first minimum of the diffraction expression

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The first minimum occurs for m = 1

sin θ = λ / a

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tan θ = y / L

Since the angles are very small, let's approximate

tan θ = sin θ/cos θ = sin θ

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3 years ago

Unpolarized light passes through a combination of two ideal polarizers. The transmission axes of the first polarizer and the sec

Yuliya22 [10]

Answer:

62.5 %

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Let the initial intensity of unpolarized light is Io.

After first polariser the intensity of light becomes I'.

So, $I' = \frac{I_{0}}{2}$

Now it passes through another polariser. The angle between the first polariser and the second polariser is given by Ф. The intensity is I''.

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2 years ago

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