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34kurt
2 years ago
13

Part H

Chemistry
1 answer:
Dvinal [7]2 years ago
7 0

Answer:

See explanation.

Explanation:

-_-

Part H: C

Review:

1. joules

2. c

3. kinetic energy

4. mass

5. heat and light

6. conduction, convection, or radiation

7. the amount of energy in the universe is constant / energy can neither be created nor destroyed

8. Law of Conservation of Energy / Impossibility of Perpetual Motion

9. F

10. The earth's core.

11. Potential energy.

12. Nice to know.

a) Sir Seymour. The kinetic energy equation has velocity squared. Increasing velocity is much more destructive..

b) Jupiter. Weight is gravity acting on mass. Gravity increases with mass. So  Jupiter.

13. True.

14. Second Law of Thermodynamics describes heat flow from hot to cold objects. So, for the refrigerator to work, it needs to steadily expell hot air or objects inside won't cool as they releases heat to the surrounding air inside the refrigerator.

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C

Explanation:

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3 years ago
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Answer:

H - Hydrogen

He - Helium

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Be - Beryllium

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O - Oxygen

F - Fluorine

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3 0
3 years ago
Bob is investigating whether the density of water changes with temperature. Which of the following variables should he change in
LekaFEV [45]

Answer:

temperature of the water

Explanation:

Density is defied as mass divided by the volume. To investigate how the density of water change with temperature, Bob have the change the temperature and read the volume and mass of the investigated sample.

Even if there is a different salt content between booted water or tap water and have an influence on the density (compared with pure water), this difference is not so big so the change in density with temperature can be determined. Considering that the experiment do not require extreme accuracy,  any type of water may be used (bottled water of tap water).

7 0
4 years ago
A helium balloon has a volume of 2.30 L at 23.5 ​o​C and a pressure of 1.00 atm at sea level. The Balloon is released and floats
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"how a trait appears, or is physically expressed?
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I think the answer is genotype.
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