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ziro4ka [17]
3 years ago
5

PLEASE HELP!! 13 POINTS! SCIENCE!

Physics
2 answers:
Vsevolod [243]3 years ago
4 0

Answer:

it's only 7 points we have an eyessssss

pogonyaev3 years ago
3 0

Answer:

A.

Explanation:

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An object has a total kinetic energy of 2,400,000 J. If it’s mass is 0.004 kg, then what is it’s velocity.
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Which phenomenon caused scientists to rethink their understanding of light<br> as a wave?
wariber [46]

Answer:

The phenomenon of diffraction.

Explanation:

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2 years ago
A 12-V DC automobile head lamp is to be used on a fishing boat with a 24-V power system. The head lamp is rated at 50 W. A resis
spin [16.1K]

Answer:

The  resistance is  R  =  2.88 \ \Omega

Explanation:

From the question we are told that

    The  voltage  rating of the headlamp is  V_1  =  12 \ V

     The  voltage of the power system is  p =  24 \  V

     The  power rating of the headlamp  is  P  =  50 W

Generally the power which the resistor dissipates is mathematically represented as

      P  =  V_L *  I

=>       50 =  12 *  I

=>   I  =  4.1667 \  A

Generally the resistance is

      R  =  \frac{V_1 }{I}

      R  =  \frac{12 }{4.1667}

      R  =  2.88 \ \Omega

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3 years ago
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