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3 years ago

8

The discovery that the universe appears to be expanding led to a widely accepted theory called ____?

2 answers:

Artemon [7]3 years ago

8 0

I believe the answer is c which is hubble’s law.

svet-max [94.6K]3 years ago

5 0

Answer:c hubble's law

Explanation:

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A scientist prepares a colloidal solution and pours it into a glass tank. She then flashes a beam of white light into one end of

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The answer is C) <span>The higher frequencies of visible light were scattered by the colloid particles.</span>

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3 years ago

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Kayla draws the image shown as part of her physical science homework.

AnnZ [28]

What the question for this assessment

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3 years ago

I need help please somebody help me

Morgarella [4.7K]

Answer:

Generally, magnets are attracted to objects that are made of the metals iron, nickel, or cobalt. These materials are called ferromagnetic materials. ... When all or most of the domains are aligned in the same direction, the whole object becomes magnetized in that direction and becomes a magnet.

Explanation:

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3 years ago

A light bulb operating at a dc voltage of 120 V has a power rating of 60 W. How much current is flowing through this bulb

densk [106]

Voltage=V=120V
Power=P=60W

Current=I

$\\ \rm\rightarrowtail I=\dfrac{P}{V}=\dfrac{60}{120}=\dfrac{1}{2}=0.5A$

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2 years ago

Two coils of wire are placed close together. Initially, a current of 3.04 A exists in one of the coils, but there is no current

Alchen [17]

Answer:

$M=0.0247H$

Explanation:

Given data

$V_{voltage}=4.29V\\I_{current}=3.04A\\t_{time}=1.75*10^{-2}s$

To find

Mutual inductance of the two-coil system

Solution

The mutual inductance given as:

M= (-VΔt)/ΔI

Substitute the given values

So

$M=-\frac{4.29V*1.75*10^{-2}s}{(0-3.04A)}\\ M=0.0247H$

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3 years ago