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3 years ago

15

The thermal conductivity of a cement is 0.168 British thermal units per foot hour degree Fahrenheit [BTU divided by (ft h Super

script o Baseline Upper F )]. Convert this value in units of watts per meter kelvin [Upper W divided by (m Upper K )].

1 answer:

Sliva [168]3 years ago

5 0

Answer:

thermal conductivity = 0.2906 W/m.K

Explanation:

thermal conductivity = 0.168 BTU/h.ft⁰F

1 BTU/h.ft⁰F = 1.7295772056 W/m.k

0.168 BTU/h.ft⁰F = 0.168 * 1.7295772056 W/m.k

0.168 BTU/h.ft⁰F = 0.2906 W/m.k

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Answer:

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Explanation:

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$c_2$ $4\sqrt{6} =0$

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Therefore , $x(t)=c_1$ $cos 4\sqrt{6t}$

Since , the mass is released from the rest from 4 inches

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