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nekit [7.7K]
3 years ago
5

Some students use an apple to represent the Earth. What is the best reason to use an apple for this comparison?

Chemistry
1 answer:
nadezda [96]3 years ago
3 0
C.The seeds of the apple are very light in comparison to the rest of the apple, and the core of the earth is also made of very light matter.
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Easy chemistry!! I'm really on a time crunch please please please help me!!!! I'm terrible at chemistry x﹏x
Serjik [45]

Answer:

ADD MORE POINTS THEN WE CAN TALK HUN

Explanation:

YW!!!!! ;D

8 0
3 years ago
You and a friend move a grand piano across the living room, exerting 25 newtons of force and performing 175 joules of work. It t
agasfer [191]
<h3>Answer:</h3>

Distance = 7 m

Power = 12.5 J/s or watts

<h3>Explanation:</h3>

Work done = 175 Joules

Force exerted = 25 Newtons

Work done is the product of force exerted and the distance moved by a body.

Therefore;

Work done = Force × distance

Rearranging the formula we can work out the distance;

Distance = work done ÷ Force

              = 175 J ÷ 25 N

             =  7 m

Thus, the grand piano was moved by 7 m across the living room .

On the other hand,

Power is the rate at which the work is done.

Therefore;

Power = Work done ÷ time

Work done = 175 Joules

Time = 14 seconds

Thus;

Power generated = 175 J ÷ 14 sec

                            = 12.5 J/s or watts

Hence, a power of 12.5 J/s was generated in moving the grand piano.

8 0
4 years ago
I need help on this please
Hunter-Best [27]
Tha is really easy just search them all up ,but ill get  u started 
In which season is the sun closest to the earth?Answer Summer

7 0
3 years ago
Who are the scientists that contributed in arranging of the periodic table?
Irina-Kira [14]
In 1869 Russian chemist DIMITRI MENDELEEV started the development of the periodic table,arranging chemical elements by atomic mass. He predicted the discovery of other elements and left spaces open in his periodic table for them. HOPE THIS HELPSS HAVE A GREAT DAY <333
7 0
3 years ago
Alkaline Earth Metals chemical properties on the periodic table
Tom [10]

Answer:

shiny

silvery-white

somewhat reactive metals at standard temperature and pressure

readily lose their two outermost electrons to form cations with a 2+ charge

low densities

low melting points

low boiling points

Explanation:

4 0
3 years ago
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