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Tju [1.3M]
3 years ago
12

How can an electric motor can help keep a home warm?

Chemistry
1 answer:
yuradex [85]3 years ago
4 0

An electric motor produces heat while running. The amount of heat is roughly equivalent to the amount of power delivered to the motor.

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Mendeleev’s principle of chemical periodicity states that when the elements are arranged according to their atomic numbers. This
zloy xaker [14]

The correct option is B.

Sodium will react with elements in GROUP 6, WHICH HAVE SIX ELECTRONS IN THEIR OUTERMOST SHELLS.

Sodium is a metal with atomic number 11. The electronic configuration of sodium is 2,8,1. This implies that, sodium has one electron in its outermost shell. Sodium always donate this electron in order to become stable. Elements in group 6 have six electrons in their outermost shells and they require two more electrons to attain stability. In order to form chemical bonds with elements from group 6, two atoms of sodium will react with each atom of those elements, that is, the ratio of reaction will be 2:1. By so doing, the two sodium atoms will be the ones that will donate the two electrons that the group 6 elements need to attain stability. One example of compounds formed by such reaction is sodium sulfide, Na2S.

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4 years ago
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What is the difference between a mechanical wave and an electric magnetic way
atroni [7]

Answer

Explanation: mechanical wave is an oscillation or matter and and electric wave is energy released by oscillating and accelerating chargers

5 0
3 years ago
Calculate the angle of a=1°, b=1', c= 1" in radians.
kari74 [83]
Answer 1) a=1° = 0.01745329252 radians

Explanation : According to the conversion chart, to convert 1° this formula is used;

<span>radians = degrees × π / 180°
</span>
while solving for, One degree  which is equal 0.01745329252 radians:

1° = π/180° = 0.005555556π = 0.01745329252 rad

Answer 2) b = 1' =  = 0.0002907 radians

Explanation : A minute of arc is π/10800 of radian; which is a measurement unit of angular which is equal to 1/60 of 1° degree.

So substituting the value of 1°  as  and on solving we get,

0.01745/60 = 0.0002907 radians.

A minute of arc is <span>π/<span>10800</span></span><span> of a </span>radian.

Answer 3) C= 1'' = 4.8481X 10^{-6}

Explanation - When calculating second of arc which is considered to be 1/60 of an arc minute, and 1/3600 of a degree; 

So all these are inter-related units which can be calculated if any one value is given;

<span>on solving we get, </span>π/648000 (about 1/206265) of a radian = 4.8481 X 10^{-6}
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4 years ago
Help asap!! Will mark brainliest
Ghella [55]

Answer:

question 3: A

question 4: products and reactants

Explanation:

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3 years ago
The chemical equation of photosynthesis includes 6O2. What does the small number after the O represent?
blondinia [14]
Its the number of Oxygen molecules
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