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slamgirl [31]
3 years ago
13

You are given the melting points of three unknown substances and are asked to predict which one is an ionic compound. You would

select the compound with the ____________________ melting point.
Physics
1 answer:
nikitadnepr [17]3 years ago
4 0
The answer is <span>highest</span>
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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

3 0
3 years ago
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A tennis ball of mass 0.060 kg travels horizontally at a speed of 25m/s. The ball hits a tennis
stepladder [879]
It would be A because a is perfect
7 0
3 years ago
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How do i do this??????????
Sliva [168]
Power = I^2 x R
Energy = Power x Time
4 0
3 years ago
Please answer this im not sure
vovikov84 [41]

Answer:

the answer is B

8 0
3 years ago
2. In each of A, B, C, &amp; D below, a sphere is moving from left to right next 20 points
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Answer:

zero

rank the magnitude of the average velocity over the first 2 second

8 0
3 years ago
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