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gulaghasi [49]
3 years ago
8

If an object triples its velocity, how does this effect its KE?

Physics
1 answer:
lara31 [8.8K]3 years ago
3 0
If an object triples its velocity then the kinetic energy become 9 times the initial kinetic energy. i hope this helped!
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Can we use momentum to see how fast the earth is going?
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) Water flows through a horizontal coil heated from the outside by high-temperature flue gases. As it passes through the coil th
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Explanation:

Formula for steady flow energy equation for the flow of fluid is as follows.

    m[h_{1} + \frac{V^{2}_{1}}{2}] + z_{1}g] + q = m[h_{1} + \frac{V^{2}_{1}}{2} + z_{1}g] + w

Now, we will substitute 0 for both z_{1} and z_{2}, 0 for w, 334.9 kJ/kg for h_{1}, 2726.5 kJ/kg for h_{2}, 5 m/s for V_{1} and 220 m/s for V_{2}.

Putting the given values into the above formula as follows.

     m[h_{1} + \frac{V^{2}_{1}}{2}] + z_{1}g] + q = m[h_{1} + \frac{V^{2}_{1}}{2} + z_{1}g] + w  

     1 \times [334.9 \times 10^{3} J/kg + \frac{(5 m/s)^{2}}{2} + 0] + q = 1 \times [2726.5 \times 10^{3} + \frac{(220 m/s)^{2}}{2} + 0] + 0

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Thus, we can conclude that heat transferred through the coil per unit mass of water is 6597.711 kJ.

6 0
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