3 years ago

Pure science is best defined as the what?

Physics

2 answers:

Lapatulllka [165]3 years ago

7 0

A (continuing search for new knowledge)

WINSTONCH [101]3 years ago

6 0

Answer:

A) continuing search for new knowledge

Explanation:

Science has always been about discovery and gaining knowledge

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Fill in the blanks to complete each statement about the heating of Earth's surface.

cricket20 [7]

Answer:

absorption and insolation.

Explanation:

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4 years ago

As the frequency of a wave increases the wavelength.

zaharov [31]

Answer:

decreases

Explanation:

Remeber:

There is always inverse relation between frequency and wavelength.

So if one of them increases, other decreases and vice-versa.

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2 years ago

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A heat pump is to be used for heating a house in winter. The house is to be maintained at 70°F at all times. When the temperatur

Anna35 [415]

Answer:

$\dot{W_{H} } = 4244.48 Btu/h$

Explanation:

Temperature of the house, $T_{H} = 70^{0} F$

Convert to rankine, $T_{H} = 70^{0}+ 460 = 530 R$

Heat is extracted at 40°F i.e $T_{L} = 40^{0}F = 40 + 460 = 500 R$

Calculate the coefficient of performance of the heat pump, COP

$COP = \frac{T_{H} }{T_{H} - T_{L} } \\COP = \frac{530 }{530 - 500 }\\ COP = \frac{530}{30} \\COP = 17.67$

The minimum power required to run the heat pump is given by the formula:

$\dot{W_{H} } = \frac{\dot{Q_{H} }}{COP} \\$ ...............(*)

Where the heat losses from the house, $\dot{Q_{H} } = 75,000 Btu/h$

Substituting these values into * above

$\dot{W_{H} } = \frac{75000}{17.67} \\ \dot{W_{H} } = 4244.48 Btu/h$

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3 years ago

Plz help me to find my science matching... <br>

s2008m [1.1K]

Answer:

fibrous =potato

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3 years ago

Imagine two billiard balls on a pool table. Ball A has a mass of 7 kilograms and ball B has a mass of 2 kilograms. The initial v

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A) the final velocity = 66/9 m/s.
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4 years ago