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4 years ago

Which statement describes the relationship between energy and entropy in the universe?

1 answer:

6 0

The correct answer* is:
Energy must be added to decrease entropy.

In fact, entropy of an isolated system never decreases (2nd law of thermodynamics), unless some external energy is provided in order to "restore" order in the system and decrease its entropy.
(note that when external energy is added to the system, it is no longer "isolated").

*This is only true if the question is referring to a certain system within the universe. If we are considering the universe itself as the system, then this option is no longer correct, because no external energy can be provided to the universe, and since the universe is an isolated system, its entropy can never decrease. If we are considering the universe itself as the system, none of the options is true.

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dedylja [7]

Answer:

C. Grass -----> Grasshopper------>Frog

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3 years ago

Read 2 more answers

(a) Find the magnitude of an earthquake that has an intensity that is 37.25 (that is, the amplitude of the seismograph reading i

MAVERICK [17]

Answer:

The magnitude of an earthquake is 5.6.

Explanation:

The magnitude of an earthquake can be found as follows:

$M = log(\frac{I}{S})$

Where:

I: is the intensity of the earthquake = 37.25 cm

S: is the intensity of a standard earthquake = 10⁻⁴ cm

Hence, the magnitude is:

$M = log(\frac{I}{S}) = log(\frac{37.25}{10^{-4}}) = 5.6$

Therefore, the magnitude of an earthquake is 5.6.

I hope it helps you!

6 0

3 years ago

What is Otter's average velocity over his entire trip when it takes him 2 minutes to walk 100 meters north and another 1 minute

Leya [2.2K]

Answer:

0.50m/s

Explanation:

Average velocity is the change in displacement of a body with respect to time.

Velocity = ∆S/∆t

∆S = 100m - 70m

∆S = 30m

∆t = 2min - 1 min

∆t = 1min = 60secs

Substitute the given parameters into the formula for velocity

Velocity = 30m/60s

Velocity = 1/2 m/s

Average Velocity = 0.5m/s

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3 years ago

An electron with a charge value of 1.6x10^-19 C is in the presence of an electric field of 300 N/C when located between a pair o

Blababa [14]

(1.6 x 10⁻¹⁹ C) x (300 N/C) = 4.8 x 10⁻¹⁷ Newton

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4 years ago

HELP ME!!PLEASE ANSWER!!!!!!

Phoenix [80]

There are 3 states of matter. Solid, Liquid, Gas. An example of each would be ice, water, steam,

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2 years ago