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spin [16.1K]
3 years ago
13

Hey what is Krichoff rulegood morning​

Physics
2 answers:
Mekhanik [1.2K]3 years ago
3 0

Explanation:

sorry I've got a bad hand writing but i think ull understand more with the screenshot that I've just pinned for u there

nalin [4]3 years ago
3 0

Answer:

this guy has answed ur question lol

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What is the temperature of a 3.72 mm cube (e=0.288) that radiates 56.6 W?
blsea [12.9K]

Answer:

The temperature is 2541.799 K

Explanation:

The formula for black body radiation is given by the relation;

Q = eσAT⁴

Where:

Q = Rate of heat transfer 56.6

σ = Stefan-Boltzman constant = 5.67 × 10⁻⁸ W/(m²·k⁴)

A = Surface area of the cube = 6×(3.72 mm)² = 8.3 × 10⁻⁵ m²

e = emissivity = 0.288

T = Temperature

Therefore, we have;

T⁴ = Q/(e×σ×A) = 56.6/(5.67 × 10⁻⁸ × 8.3 × 10⁻⁵ × 0.288) = 4.174 × 10¹⁴ K⁴

T  =  2541.799 K

The temperature = 2541.799 K.

7 0
3 years ago
Julie wants to know if adding calcium fertilizer to tomato plants will help prevent a disease of tomato plants called blossom-en
Ksivusya [100]
It's not true.

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In this case, the variable of this experiment is actually the tomato is in sunny part or in shady part, instead of whether applying Ca fertilizer. 
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3 years ago
Renewable energy sources are ____________________?
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Answer:

Eco-friendly

Explanation:

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A tea kettle is boiling on the stove, and all of a sudden the whistle in the spout of the kettle starts shrieking. Steam rising
fenix001 [56]

Answer:

The steam represents evaporation.

Explanation:

4 0
2 years ago
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