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Amanda [17]
3 years ago
10

These pairs of forces are known as ____________-reaction pairs because one pushes against the other with an equal but opposite f

orce.
Physics
1 answer:
victus00 [196]3 years ago
5 0
Action-reaction pairs
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In terms of diameter, the planet Saturn is larger than _______ , but smaller than _______.
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ANSWER:

NEPTUNE & JUPITER

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what is the result of mixing 15 garm of water 80 degree celsius with 10 gram of ice -10 degree Celsius ? give specific heat capc
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The gravitational force between the Sun (mass = 1.99 × 1030 kg) and Mercury (mass = 3.30 × 1023 kg) is 8.99 × 1021 N. How far is
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Read 2 more answers
(a) Calculate the rate of heat conduction through house walls that are 13.0 cm thick and that have an average thermal conductivi
Mkey [24]

Answer:

a. 960 W b. One 1 kW room heater

Explanation:

a. The rate of heat conduction P = kA(T₂ - T₁)/d where k = 2 × 0.040 W/m-K =  0.080 W/m-K since the thermal conductivity of glass wool is 0.040 W/m-K and that of the material is twice the thermal conductivity of glass wool, A = area of walls = 120 m², T₁ = outside surface temperature = 5.0 °C, T₂ = inside surface temperature = 18.0 °C and d = thickness of wall = 13.0 cm = 0.13 m

P = kA(T₂ - T₁)/d

= 0.080 W/m-K × 120 m²(18.0 °C - 5.0 °C)/0.13 m

= 9.6 Wm/K × 13 K/0.13 m

= 124.8 Wm/0.13 m

= 960 W

b. The number of 1 kW room heater required will be

n = rate of heat conduction/power of one room heater = 960 W/ 1 kW = 960 W/1000 W = 0.96 ≅ 1

So we need only one 1 kW room heater.

6 0
3 years ago
The rate at which work is done is known as which of the following?
sveta [45]

Answer:

A , power

Explanation:

Hope this is useful. Have a lovely rest of your day! God bless you.

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3 years ago
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