Answer:
The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside. This is particularly confusing in the case of non-conservative forces, where energy is converted from mechanical energy into thermal energy, but the overall energy does remain the same. The only way to use energy is to transform energy from one form to another.
Explanation:
Hope this helps!
Answer:
means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.
Explanation: this is a shorter answer.
B) Part of the strong magnet "rubs" off and joins to the paper clip.
C) The strong magnet aligns the magnetic domains within the paper clip.
D) The strong magnet creates an electric force filed around the paper clip.
When Lisa exposes an iron paper clip to a very strong magnet, the strong magnet aligns the magnetic domains within the paper clip and so, she is now able to pick up other paper clips using her newly magnetized clip.
The ends of the magnet, which are referred to as the poles, attract all of the iron filings when a small amount of it comes into contact with them. A magnet has two poles: an opposite pole and a similar pole. While unlike poles attract, like poles repel. When the distance between the two magnets is smaller, the magnetic force between them is larger.
Three different kinds of magnets exist:
Magnets are created when ferromagnetic elements, such as iron and nickel, are subjected to a magnetic field. Metals become permanently magnetic when heated to specific temperatures.
Learn more about magnet here:
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0.010 meter through a potential difference of
9.0 volts?
(1) 2.7 × 10^3 J (3) 3.0 J
(2) 27 J (4) 3.0 × 10^−2 J
fission
fusion
chemical
electrical
the answer is fusion
nebular clouds
stellar gravity
rotation
the answer is: Nuclear fusion
c. Modern view
b. Earth-centered
d. all of the above are solar system models
Correct answer choice:
B. Earth-centered
Explanation:
Heliocentric theory is the planetary model in which the Earth and planets rotate around the Sun at the focus of the Solar System. Historically, Heliocentric theory was objected to geocentric theory, which set the Earth at the core. This approach was explained in sections by several cosmologists over various times, particularly Aristarchus, Copernicus, Kepler, and Galileo.
Answer:
The correct answer is option b, Earth centered
Explanation:
For the very first it was proposed by Copernicus that it is not the earth but sun which lies at the center of the system and rest all planets revolve around the sun. This sun centered model is known as heliocentric system and is also referred to as the modern view. This model was also helpful in solving two major queries instantly –
a) Varying brightness of planets
b) Retrograde motion.