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gtnhenbr [62]
3 years ago
9

A small windmill is to be built at a science competition. A large floor fan is used to power each windmill The task

Chemistry
1 answer:
fredd [130]3 years ago
7 0

Answer:

D

Explanation:

I'm doing USA test prep and I got it right

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A very hot cube of copper metal (32.5 g) is submerged into 105.3 g of water at 15.4 0C and it reach a thermal equilibrium of 17.
zysi [14]

Answer:

The initial temperature of the metal is 84.149 °C.

Explanation:

The heat lost by the metal will be equivalent to the heat gain by the water.  

- (msΔT)metal = (msΔT)water

-32.5 grams × 0.365 J/g°C × ΔT = 105.3 grams × 4.18 J/g °C × (17.3 -15.4)°C

-ΔT = 836.29/12.51 °C

-ΔT = 66.89 °C

-(T final - T initial) = 66.89 °C

T initial = 66.89 °C + T final

T initial = 66.89 °C + 17.3 °C

T initial = 84.149 °C.

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3 years ago
¿Cuál es la cantidad de electrones (e-) de Níquel si tiene una masa atómica de 58.6 y un número
daser333 [38]

Answer:

Hi do we translate a this

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2 years ago
Question Ask “ Which Part Of The Ecological Pyramid Is Incorrect.”
shepuryov [24]
Primary producers i believe
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3 years ago
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________________ are a lot like gases, but the atoms are different because they are made up of free electrons and ions of the el
lianna [129]

Answer:

plasma

Explanation:

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Match each of Earth's spheres with its definition.
insens350 [35]

Answer:

Thin layer of gases suspended in the air surrounding.

Explanation:

Atmosphere, mark me brainlist.

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