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Paha777 [63]
3 years ago
6

1.What is true about heat capacity and specific heat?

Physics
1 answer:
Aleks04 [339]3 years ago
6 0
1-c. 2-d. 3-a. and 4 is -b.
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koban [17]
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The surface of the Sun has a temperature of about 5 800 K. If the radius of the Sun is 7 × 108 m, determine the power output of
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Answer:

a. 3.95\times10^{26}W

Explanation:

T = temperature of the surface of sun = 5800 K

r = Radius of the Sun = 7 x 10⁸ m

A = Surface area of the Sun

Surface area of the sun is given as

A = 4\pi r^{2} \\A = 4(3.14) (7\times10^{8})^{2}\\A = 6.2\times10^{18} m^{2}

e = Emissivity = 1

\sigma = Stefan's constant = 5.67 x 10⁻⁸ Wm⁻²K⁻⁴

Using Stefan's law, Power output of the sun is given as

P = \sigma e AT^{4} \\P = (5.67\times10^{-8}) (1) (6.2\times10^{18}) (5800)^{4}\\P = 3.95\times10^{26} W

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Do you need to take into consideration the fact that the boat sinks lower into the water as water leaks in?
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3 years ago
1. first nuclear reactor
IRISSAK [1]
The correct matches are as follows:

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7 0
3 years ago
Read 2 more answers
Please help me!!!!!!!! it's due soon!!!!!!!!!!!!! NO LINK!!!!!!!!!
maria [59]
.75(m/s)^2


Use this picture
If you know the two on the bottom you multiply them but if you only know the top and one on the bottom you divide

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