1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iragen [17]
3 years ago
8

How does the sun transmit energy from millions of miles away into the Earth system? 'Energy' and 'power' are often confused, but

aren't the same. Why do we say 'power plants' instead of 'energy plants'? How can the efficiency of an energy transformation be calculated? Use thermodynamics and the concept of energy quality to explain why we can only burn a gallon of oil as fuel once. What can inputs, outputs, steady states, and feedback loops tell us about the health of environmental systems? Are positive feedbacks always good? Are negative feedbacks always bad? What's the difference between them?
Physics
1 answer:
Leona [35]3 years ago
6 0

Answer:

  • Energy from sun travels to the earth by radiation of waves.
  • Energy is the capacity to do the work whereas power is the rate of doing work or the rate of energy transfer.
  • Energy always transforms from higher grade to a lower grade.

Positive feedback are not good when it disturbs the stability too much over a wide range.

No, negative feedback are not always bad because they enhance the stability of our system, resist the change in a system making it consistent and have a narrower range of variation.

Explanation:

The energy from the sun travels a huge distance in vacuum and atmosphere.

  • The solar energy travels to the earth in the form of electromagnetic radiations which do not require any medium of transmission and are capable of travelling in vacuum by the mode called radiation. In this mode the packets of energy get directly transmitted from the source to its surroundings. This packet of energy is called quanta.
  • Energy is the capacity to do work. Everything that we see and feel around us is some sort of energy. Every matter is the condensed form of energy the other forms that we cannot touch or feel is the wave form of energy. The wave form of energy stays in two form either stored in a mass or it is in transition. Now the concept of power arises form the energy in motion, power is defined as the rate of doing work or the rate of energy transfer. We usually use the term power for the energy in motion.
  • We can burn a gallon of fuel only once because it undergoes a chemical change and the chemical changes are mostly permanent in nature. There is a certain direction to which the energy can  flow spontaneously. When we burn the fuel then the stored chemical energy of the fuel gets converted into heat and light and the heat energy released during the combustion of the fuel is sufficient to further provide the heat of combustion of fuel.
  • Energy always transforms from high grade to the lower grade and the converse is not possible spontaneously.

Positive feedback are not good when it disturbs the stability too much over a wide range.

No, negative feedback are not always bad because they enhance the stability of our system, resist the change in a system making it consistent and have a narrower range of variation.

You might be interested in
The half-life of Co-55 is 175 hours. How much of a 4000 g of Cobalt-55 sample would be left after 525 hours?
Harrizon [31]

We know that whatever amount we start with, half of it decays and forms atoms of other elements in 175 hours.  So in order to figure out how much is left after 525 hours, we'll need to know how many half-lifes pass in that amount of time.

Well, (525 divided by 175) is exactly 3 half-lifes.  So this will be easy.

-- After 1 half-life . . .

. . . . . 50% decays, 50% is still there.

-- After the 2nd half-life . . .

. . . . . (half of the leftover 50%) = another 25% decays, 25% is left.

-- After the 3rd half-life . . .

. . . . . (half of the leftover 25%) = another 12.5% decays, 12.5% is left.

12.5% of 4,000g = (0.125 x 4,000g) = <em>500 g</em> .

============================================

<u>Another way</u>:

After 1 half-life, 1/2 is left.

After 2 half-lifes, 1/4 is left.

After 3 half-lifes, 1/8 is left.

1/8 of 4,000g = (4,000g/8) = <em>500 g </em>.

5 0
3 years ago
Which of the following types of particles can be categorized into different kind of elements?
KatRina [158]

The answer would be atoms

4 0
2 years ago
Read 2 more answers
Imagine two billiard balls on a pool table. Ball A has a mass of 2 kilograms and ball B has a mass of 3 kilograms. The initial v
ratelena [41]
1. The balls move to the opposite direction but the same speed. This represents Newton's third law of motion.
2. The total momentum before and after the collision stays constant or is conserved.
3. If the masses were the same, the velocities of both balls after the collision would exchange.
4 and 5. Use momentum balance to solve for the final velocities.
8 0
3 years ago
Read 2 more answers
In
son4ous [18]
(Direction) for the fact that it will continue having the momentum at the constant speed in which the engines turned off.
6 0
3 years ago
The _____ period refers to the first two weeks of development after conception.
Mrac [35]

Answer: Geminal

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • On a cold winter day, a penny (mass 2.50 g) and a nickel (mass 5.00 g) are lying on the smooth (frictionless) surface of a froze
    8·1 answer
  • 7. A high-speed digital camera captures a bungee jumper diving off a bridge. What happens to the distance between the jumper and
    11·1 answer
  • The motion of an object will not be changed if
    15·2 answers
  • Galileo discovered that the orbits in which planets move around the Sun are elliptical.
    14·2 answers
  • Based on how this sample looks, which term describes the matter that makes up granite?
    11·2 answers
  • a certain car travels 20 km east then turns south for 13 km finally the car turns east again for 6 km
    6·2 answers
  • How did ancient civilizations perform astronomical measurements
    11·1 answer
  • A jet plane lands with a velocity of 100 m/s and can accelerate at a maximum of -9.0 m/s2 as it comes to rest. The minimum time
    12·1 answer
  • What is the difference between an open and closed circuit?
    5·2 answers
  • Greyhounds are among the fastest dogs on earth. On average, what is the fastest speed they can run?.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!