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Lynna [10]
3 years ago
12

For the past four years, Mr. Thompson has kept a pet boa constrictor in his science classroom. At the beginning of each year, hi

s students measure the length of the snake and record the result. The table below shows the measurements for all four years. Year Length (cm) 1 120 2 190 3 260 4 330 What is the growth pattern of the boa constrictor? It doubles in size every year. The amount it grows changes every year. It grows 70 centimeters each year. It grows 7 centimeters each year.
Physics
2 answers:
umka2103 [35]3 years ago
7 0
It grows 70cm a year. 
maxonik [38]3 years ago
6 0

Answer:               It grows 70 centimeters each year.

Explanation: study island

Have a good week :))

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Change in specific internal Energy=250\ \rm Btu/lb

Explanation:

Given:

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  • Final pressure and temperature are p_1=480\ \rm lbf/in^2
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Since the process is isotropic we have

p_1v_1^{1.3}=p_2v_2^{1.3}\\160\times 1^{1.3}=480\times v_2^{1.3}\\v_2=0.43\ \rm ft^3\\

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w=\dfrac{p_1v_1-P_2v_2}{n-1}\\\\w=\dfrac{160\times1-480\times0.43}{1.3-1}\\w=-154.67\ \rm Btu\\

According to the first law of thermodynamics we have

Q=\Delta U+w\\-2.1=\Delta U-154.67\\\Delta U=152.56\ \rm Btu\\

So the Specific Internal Change is given by

\Delta u=\dfrac{\Delta U}{m}\\\Delta u=\dfrac{152.56}{0.4}\\\Delta u=250\ \rm Btu/lb

So the specific Change in Internal energy is calculated.

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