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Katen [24]
3 years ago
8

Wood has 4 times the heat capacity as steel. If I add the same amount of heat to the same amount of steel and wood, I find the t

emperature of the steel increases to 40°C. What is the temperature of the wood?
Physics
1 answer:
Y_Kistochka [10]3 years ago
5 0
We balance the enthalpy absorbed by the steel and the enthalpy lost by wood. In this case, we use mCp ΔT to describe the problem. Cp (W) is 4 Cp(S). assuming the same mass,
mCp(W) ΔT1 = <span>mCp(S) ΔT2
</span>  4* <span>ΔT1  = 40 
</span><span>ΔT1 = 10. Hence the temperature of the wood is decreased by 10 degrees</span>
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Two movers are pushing a large crate with a force of 60.0 n each. one pushes north, the other east. what is the equilibrant forc
romanna [79]
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3 years ago
A circuit element consists of a resistor with value 20Ω and inductor with value 10mH connected in series. A voltage of LaTeX: v(
Flura [38]

Answer:

8.97 Watt

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Ф = 45°

ω = 1000 rad/s

Vo = 20 V

Inductive reactance, XL = ωL = 1000 x 0.01 = 10 ohm

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P = Vrms x Irms

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6 0
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