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natali 33 [55]
3 years ago
12

Chemical, potential energy is stored in a battery.

Chemistry
2 answers:
Sav [38]3 years ago
5 0

Answer:

  • <em>If a piece of iron were placed close to this device, the iron nail would move toward the piece of iron.</em>

Explanation:

The description of the built device corresponds to a temporal electromagnet: as long as the battery is connected and supplying the potential difference (voltage) the iron nail will have magnet properties.

Since magnets attract and are attracted to iron, the iron nail and the piece of iron would feel attracted to each other.

The question is confusing because it asks what would happen to a piece of iron if it were placed close to this device, but it should be what happens to the iron nail if a piece of iron were placed close to this device.

Then, assuming the iron nail is free to move it would move toward the piece of iron due to the electromagnetic force.

Harrizon [31]3 years ago
4 0

Answer: D it moves toward piece of iron.

Explanation:

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9. Calculate the specific heat capacity of titanium if a 43.56 g sample absorbs 0.476 kJ as its temperature changes from 20.5 oC
Shalnov [3]

Answer:

c = 0.528 J/g.°C

Explanation:

Given data:

Mass of titanium = 43.56 g

Heat absorbed = 0.476 KJ  = 476 j

Initial temperature = 20.5°C

Final temperature = 41.2°C

Specific heat capacity = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 41.2°C - 20.5°C

ΔT = 20.7 °C

476 J = 43.56 g × c × 20.7 °C

476 J = 901.692 g.°C × c

c = 476 J / 901.692 g.°C

c = 0.528 J/g.°C  

8 0
3 years ago
Find value of x<br>(6xx) + (7x100-3<br>6<br>6.94<br>100<br>100​
Alla [95]

Answer:

The annswer is 6.94

Explanation:

The answer is 6.94

5 0
3 years ago
What will you observe when you open a bottle of concentrated hydrochloric acid?
Soloha48 [4]

Answer:

Strong affinity of HCl gas for moisture in air results in forming of droplets of liquid solution which appears like a cloudy smoke.

Explanation:

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7 0
3 years ago
Help plz! im not understanding
valina [46]

a is 8.46 × 10^5

b is 3 ×10^-2

Explanation:

i hope this helps

4 0
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What elements are found in the compound represented in the diagram
DedPeter [7]
 hydrogen and carbon, hope that helped


3 0
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