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umka21 [38]
3 years ago
8

What units would be used to measure the diameter of Earth? (site 2)

Chemistry
1 answer:
Masja [62]3 years ago
6 0
We would use miles to measure the diameter of the earth because that is the greatest measure of length that is possible to measure something large.
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What is the entropy change in the environment when 5.0 MJ of energy is transferred thermally from a reservoir at 1000 K to one a
Leni [432]

Answer:

The entropy change in the environment is 3.62x10²⁶.

Explanation:

The entropy change can be calculated using the following equation:

\Delta S = \frac{Q}{k_{B}}(\frac{1}{T_{f}} - \frac{1}{T_{i}})

Where:

Q: is the energy transferred = 5.0 MJ

k_{B}: is the Boltzmann constant = 1.38x10⁻²³ J/K  

T_{i}: is the initial temperature = 1000 K

T_{f}: is the final temperature = 500 K

Hence, the entropy change is:

\Delta S = \frac{5.0 \cdot 10^{6} J}{1.38 \cdot 10^{-23} J/K}(\frac{1}{500 K} - \frac{1}{1000 K}) = 3.62 \cdot 10^{26}                                    

Therefore, the entropy change in the environment is 3.62x10²⁶.

I hope it helps you!          

7 0
3 years ago
The wind causes this wind turbine to spin, creating electricity. The moving blades are evidence of A) solar power. B) work being
timama [110]
They answer is (C) Potential Energy
5 0
2 years ago
Which of these is evidence that an unbalanced force is acting on an object?
Anna11 [10]

Answer:

The motion of the object is changing

Explanation:

Objects will only change their motion (direction, speed) if there is an unbalanced force of some kind acting on them. Balanced forces result in no change in the object's state of motion.

5 0
3 years ago
Common thermoplastic polymers such as polystyrene and PVC can be _______ as often as they are reheated. A) hardened B) shortened
tangare [24]
The answer is A) hardened
5 0
3 years ago
When warm air is forced upward along a cold front what might happen?
mote1985 [20]

Answer: With the cold front, warm air is rapidly forced upward (like the shavings) in advance of the actual front (the “cutter”), creating towering cumulus clouds, some hard showers and quite possibly a few gusty thunderstorms followed by a push of cooler and drier air in its wake.

Explanation:

8 0
3 years ago
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