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3 years ago

A flashlight has a resistance of 30 Q and is connected

Physics

1 answer:

Talja [164]3 years ago

7 0

Answer:

3 A

Explanation:

The relationship between voltage, current and resistance in a conductor is expressed by Ohm's law, which states that:

$V=RI$

where:

V is the potential difference across the conductor

R is the resistance of the conductor

I is the current flowing through it

In this problem, for this flashlight we have:

V = 90 V is the potential difference

$R=30 \Omega$ is the resistance of the flashlight

Solving for I, we find the current:

$I=\frac{V}{R}=\frac{90}{30}=3 A$

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3 years ago

The mass of Object 2 is double the mass of Object 5. The mass of Object 4 is half of the mass of Object 5 and the mass of Object

SVETLANKA909090 [29]

This is a great problem if you like getting tied up in knots
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I found that it makes the problem a lot easier if I give the objects some
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Let the mass of Mass of Object 5 be 20 clods .

Then . . .

-- The mass of Object 2 is double the mass of Object 5 = 40 clods.

-- The mass of Object 4 is half of the mass of Object 5 = 10 clods.
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So now, here are the masses:

Object #1 . . . . . unknown
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Choice-A:
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Choice-B.
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Can't be.
Objects #2 and #4 have different masses, so they can't both
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Choice-C.
The gravitational force between Object 1 and Object 2 is greater than
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Yes ! Yay !
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Choice-D.
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Can't be.
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Conclusion:
If the DISTANCE is the same for all the tests, then Choice-C is
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3 years ago

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user100 [1]

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GaryK [48]

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3 years ago