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Sonbull [250]
3 years ago
10

The standard unit of brightness is called the candela. True False

Physics
1 answer:
Westkost [7]3 years ago
3 0

Answer:

TRUE

Explanation:

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Gravitational force is reduced by _____ between objects.
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A computer is connected across a 110 V power supply. The computer dissipates 123 W of power in the form of electromagnetic radia
nexus9112 [7]

Answer:

81.3ohms

Explanation:

Resistance is known to provide opposition to the flow of electric current in an electric circuit.

Power dissipated by the computer is expressed as;

Power = current (I) × Voltage(V)

P = IV... (1)

Note that from ohms law, V = IR

I = V/R ... (2)

Substituting equation 2 into 1, we will have;

P = (V/R)×V

P = V²/R.. (3)

Given source voltage = 100V, Power dissipated = 123W

To get resistance R of the computer, we will substitute the given value into equation 3 to have

123 = 100²/R

R = 100²/123

R = 10,000/123

R = 81.3ohms

The resistance of the computer is 81.3ohms

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An object moving north with an initial velocity of 14 m/s accelerates 5 m/s2 for 20 seconds. What is the final velocity of the o
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Answer:

option C

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Final velocity of the object is 114 m / s. Hence, final velocity of the object is 114 m / s.

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If you are standing at a beach on Earth at the same time that the shadow of the moon falls across your location, what event woul
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A solar eclipse .....................

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i will give brainliest Which of the following structures are present in plant cells but absent in animal cells? Choose 1 answer:
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A. cell walls

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Plants have cell walls but animals dont.

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