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3 years ago

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Lou’s pet parrot looks as through it has many more features on cold days than it appears to have on warm ones. Loy determines th

at the number of features is effected by the temperature. Which of the following is an independent variable?

1 answer:

Alexus [3.1K]3 years ago

8 0

it has many more features on cold days than it appears to have on warm ones; thats the independant variable i believe

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Answer:

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m = Mass of ice

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$Q_1=mL_s\\\Rightarrow Q_1=m(2.256\times 10^6)$

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$Q_2=ms_w\Delta T\\\Rightarrow Q_2=m4186\times (100-0)\\\Rightarrow Q_2=m0.4186\times 10^6$

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$Q_3=mL_i\\\Rightarrow Q_3=m(333.5\times 10^3)\\\Rightarrow Q_3=m(0.3335\times 10^6)$

Total heat released is

$Q=Q_1+Q_2+Q_3\\\Rightarrow Q=m(2.256\times 10^6)+m0.4186\times 10^6+m(0.3335\times 10^6)\\\Rightarrow Q=3008100m$

The kinetic energy of the bullet will balance the heat

$K=Q\\\Rightarrow \frac{1}{2}mv^2=3008100m\\\Rightarrow v=\sqrt{2\times 3008100}\\\Rightarrow v=2452.79432\ m/s$

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