3 years ago

‼️DEADLINE 10:30‼️HELP‼️

Physics

1 answer:

sashaice [31]3 years ago

4 0

I forgot the answer

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andriy [413]

Explanation:

define speed because change in motion is known as it is also the definition of speed and if there is change in motion then there will be increase of speed or decrease of speed so the answer is speed

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3 years ago

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kykrilka [37]

D.3. a.4. sorry this is all i know hope this helps

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3 years ago

Resistor A has twice the resistance of resistor B. The two are connected in series and a potential difference is maintained acro

Ainat [17]

Answer:

<em>The thermal energy dissipated in A would be twice that in B</em>

Explanation:

Resistor B (RB)= R

Resistor A (RA)= 2 R

When they are connected in series the equivalent Resistance in the circuit would be;

Equivalent resistance = RA +RB = R + 2 R = 3 R;

From ohms law I = V/R

I = V/3 R

Now the thermal energy is the power dissipated by the circuit and can be obtained thus;

P = $I^{2}R$

Then,

$P_{A} = (\frac{V}{3R}) ^{2} *2 R\\\\P_{A} = \frac{V^{2} }{9R^{2} } *2R\\\\P_{A} = \frac{2}{9}( \frac{V^{2} }{R}) \\\\P_{B} = (\frac{V}{3R}) ^{2} * R\\\\P_{B} = \frac{V^{2} }{9R^{2} } *R\\\\P_{B} = \frac{1}{9}( \frac{V^{2} }{R})$

Therefore Pa : Pb = 2: 1, this means that the thermal energy dissipated in A would be twice that in B

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3 years ago

2.5 years into minutes?<br><br>

Mnenie [13.5K]

Is it 1314000 Or something

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3 years ago

Is a theory related to perspective

lbvjy [14]

A theoretical perspective is a set of assumptions about reality that inform the questions we ask and the kinds of answers we arrive as a result.

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3 years ago

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