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Sholpan [36]
3 years ago
11

Why is stepping on a can considered a physical change?

Physics
1 answer:
melisa1 [442]3 years ago
4 0
Stepping on a can is a physical change because there is no chemistry behind this. Someone is physically breaking or deforming the can. There are no chemicals or anything touching the can. The foot smashing is physical. 
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Why do dogs bark when new people come to their home?
pashok25 [27]
Your answer is most likely:
<span>B) They are protective of their owners. </span>
3 0
3 years ago
A person walking in high heals can damages the floor by making small dimples in the floor since all their weight is concentrated
iren [92.7K]

Given :

Mass of person, m = 81 kg.

Area of high heal, A = 3.5 cm² = 0.00035 m².

To Find :

The pressure applied by the heal on the ground.

Solution :

We know, pressure is given by :

P = \dfrac{mass}{Area}\\\\P = \dfrac{81}{0.00035} \ N/m^2\\\\P = 231428.57 \ N/m^2

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4 0
3 years ago
If you are standing at Earth’s North Pole, which of the following will be directly overhead?
Sidana [21]

The north celestial pole (and also the south) are described as two imaginary points that project on the axis of rotation of the earth, indefinitely towards space and that intersects with the celestial sphere (Remember that the earth has a slight inclination with respect to to its axis of rotation). The north and south celestial poles are directly above the head of someone located at the north or south pole of the earth.

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7 0
3 years ago
The partial negative charge in a molecule of water occurs because
just olya [345]

the electrons shared between the oxygen and hydrogen atoms spend more time around the oxygen atom nucleus than around the hydrogen atom nucleus

4 0
4 years ago
Round the following numbers.
crimeas [40]

Answer:

(a) 123.517 to 2 decimal places = 123.52

(b) 14.328 km/hr to 1 decimal place = 14.3

(c) 0.00934 m to 3 decimal places = 0.009

Explanation:

a. 123.517 to 2 decimal places

⇒ to 2 decimal places = 123.52 ( round 7 to 1 since it is up to 5 and add it to 1 before it.)

b. 14.328 km/hr to one decimal place.

⇒ to 1 decimal place = 14.3 (round 8 to 1 since it is up to 5 and add it to 2 before it, the 2 becomes 3, round the 3 to 0 since it is less than 5)

c. 0.00934 m to 3 decimal places.​

⇒ to 3 decimal place = 0.009

8 0
3 years ago
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