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3 years ago

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Why does the number of cooling fins effect the rate of energy transfer from a radiator?

1 answer:

baherus [9]3 years ago

5 0

<span>The number of cooling fins effect increases the rate of energy transfer from a radiator. It is because the cooling fins have an enlarged area allows heat to be transferred into the area away from the object it needs to have less heat with. Thereby cooling the object with cooling fins.</span>

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Which bird on the wire, the one with a mass of 50g or the one with a mass of 60g, has the most potential energy?

Fynjy0 [20]

Answer:

one with 60g have the more potential

Explanation:

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3 years ago

An old building is being demolished by swinging a heavy metal ball from a crane. Suppose that such a 115kg ball swings from a 20

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3 years ago

If a FM radio station broadcasts at 80. 3 MHz (megahertz), what is its wavelength in m (speed of light 3. 0 x 108 m/s)

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Answer:

Wavelength = 3.74 m

Explanation:

In order to find wavelength in "metres", we must first convert megahertz to hertz.

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2 years ago

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3 years ago

Read 2 more answers

A person's body is producing energy internally due to metabolic processes. If the body loses more energy than metabolic processe

SVETLANKA909090 [29]

Answer:

$T_s = 6.8 degree C$

Explanation:

As per thermal radiation we know that rate is heat radiation is given as

$\frac{dQ}{dt} = \sigma eA (T^4 - T_s^4)$

here we know that

T = 34 degree C = 307 K

$A = 1.38 m^2$

e = 0.557

$\sigma = 5.67 \times 10^{-8} W/m^2K^4$

$\frac{dQ}{dt} = 120 J/s$

now we have

$120 = (5.67 \times 10^{-8})(0.557)(1.38)(307^4 - T_s^4)$

$120 = (4.36 \times 10^{-8})(307^4 - T_s^4)$

$T_s = 279.8 K$

$T_s = 6.8 degree C$

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3 years ago