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cupoosta [38]
4 years ago
8

What are the two possible explanations for not seeing something glowing brightly along every line-of-sight in the sky? I. The un

iverse is infinite in size and infinitely old, but dust absorbs starlight from far away stars. II. The universe has a finite number of stars. III. The universe is changing in some way as to prevent us from seeing an infinite number of stars.a) I and II
b) I and III
c) II and III
d) I, II and III
Physics
1 answer:
Lyrx [107]4 years ago
5 0

Answer:

B. I and III

Explanation:

Options I and III are correct. We are not able to view stars at all points in the night sky due to the fact that the size of the universe is  infinite and the universe is made up of dust , gases, and matter. These components are able to trap starlight . Also the cosmos is constantly changing as there are interactions between bodies that make up the universe.

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IceJOKER [234]
I think the answer is: 6 inches

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element x has five valence neutrons, element y has one valence electron and element z has one valence electron. which two of the
nikitadnepr [17]
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3 years ago
An imaginary line perpendicular to a reflecting surface is called _________.
n200080 [17]
<span>An imaginary line perpendicular to a reflecting surface is called "a normal" (principle line)

So, Your Answer would be Option B

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5 0
3 years ago
Read 2 more answers
Three resistors are connected in parallel. If placed in a circuit with a 12-volt power supply. Determine the equivalent resistan
Ivan

(a) The equivalent resistance of three parallel resistors is (R₁R₂R₃)/(R₁R₂ + R₁R₃ + R₂R₃).

(b) The total circuit current is 12/R.eq.

(c) The voltage drop across and current in each resistor is IR₁, IR₂ and IR₃.

<h3>Equivalent resistance of three parallel resistors</h3>

The equivalent resistance of three parallel resistors is calculated as follows;

  • Let the first resistor = R₁
  • Let the second resistor = R₂
  • Let the third resistor = R₃

\frac{1}{R_{eq}} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_2}\\\\R_{eq} = \frac{R_1R_2R_3}{R_1R_2 + R_2R_3 + R_1R_3}

<h3>Total Circuit Current </h3>

The total circuit current is calculated as follows;

V = IR

I= \frac{V}{R_{eq}} = \frac{12 \ V}{R_{eq}}

<h3>Voltage drop in each resistor</h3>

Voltage drop in resistor 1 = IR₁

Voltage drop in resistor 2 = IR₂

Voltage drop in resistor 3 = IR₃

Learn more about parallel circuit here: brainly.com/question/80537

#SPJ1

3 0
2 years ago
(this is from my workbook)
inysia [295]
I’m pretty sure it’s D. variable
7 0
3 years ago
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