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Artyom0805 [142]
3 years ago
8

Which of the following situations violates the law of conservation of energy?

Chemistry
1 answer:
vladimir2022 [97]3 years ago
7 0

Answer:

A. a ball dropped from the top of a building increases in speed until it hits the ground.

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A rock falls from a ledge to the ground. What energy conversion occurs
Gnoma [55]

Answer:

Explanation:

Potential energy is converted into kinetic energy. I am 100% positive.

6 0
4 years ago
Which gas would have the slowest rate of diffusion, assuming that all gases are at the same temperature?
Iteru [2.4K]

Answer: radon (atomic mass 222 amu

Explanation:

To calculate the rate of diffusion of gas, we use Graham's Law.

This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows:

\text{Rate of diffusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}

atomic mass of krypton= 83.8 amu

atomic mass of argon= 39.95 amu

atomic mass of xenon = 131.3 amu

atomic mass of radon= 222 amu

Thus as atomic mass of radon is highest, its rate of diffusion is slowest.

7 0
3 years ago
In 1990, the northern spotted owl was listed as endangered. Because of this, millions of acres of forests in the Pacific
Gwar [14]

Answer:

the endangered spices act

Explanation:  The US Endangered Species Act (ESA) is our nation's most effective law to protect at-risk species from extinction, with a stellar success rate: 99% of species listed on it have avoided extinction.

8 0
4 years ago
Why is governmental funding of research important?
nordsb [41]

Answer:

D. The government determines what is right & wrong for everyone

Explanation:

3 0
3 years ago
If an object has more positive charges than negative charges, the object has an overall?
djyliett [7]
The object has an overall positive charge.
7 0
3 years ago
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