Lisa exposes an iron paper clip to a very strong magnet. She is now able to pick up other paper clips using her newly magnetized clip. What happens within the paper clip in order for it to become magnetized?A) The magnet randomizes the domains within the paper clip.
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.
Answers
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.
What is magnet?
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:
- Permanent magnet
- Temporary magnet
- Electromagnets
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:
#SPJ2
Related Questions
How do you calculate the initial speed given time and displacement?The question is: The longest kick in CFL history was 83.2m. If the ball remained in the air for 4.12s, determine its initial speed. I calculated it several times and got the same answer, 40.38m/s, but the textbook says it's 28.6m/s.
Powerful eruptions on the sun’s surface are called ________. a. sunspots b. solar flares c. coronas d. supernovae
Which of the following is a true statement? A) It's easier to lift a heavy weight straight up than to slide it up a ramp. B) When you use a lot of effort, a load becomes lighter. C) When you use a minimum amount of effort, a load becomes heavier. D) When you increase the distance over which effort is expended, you don't have to work as hard.
Why is there less air pressure at higher altitudes?Air at higher altitudes doesn't have as much air weighing down on it from above.Air at higher altitudes is cooler and less turbulent.The molecules in the air lose mass and are less effected by gravity, significantly lowering their weightThe warmer, lighter air rises bringing cooler heaver air to low altitudes.
Answers
Answer:
1750mile
Explanation:
500/h
3.5h=3.5×500=1750
B. Iron core
C. Rocky crust
D. Thin atmosphere
E. Dense atmosphere
F. Relatively high density
Answers
The so-called 'terrestrial planets' are Mercury, Venus, Earth, and Mars.
The asteroid belt separates them from the 4 gas-giant planets, in a wide
gap where there should be another planet but there isn't.
Among the terrestrial planets as a group:
A). Water
No. Only earth has water (now).
B). Iron core
Yes. Most probably all.
C). Rocky crust
Yes. All.
D). Thin atmosphere.
E). Dense Atmosphere.
No.
Only Venus has a dense one.
Mercury probably has none.
Earth has the Goldilocks atmosphere.
F). Relatively high density.
Yes.
True of all the terrestrial planets.
Earth is the most dense of all the planets.
Answers
Answer:
False
Explanation:
Answers
Answer:
as you increase in altitude, air pressure decreases
B. For a uniform symmetric object, the center of mass is at the center of symmetry.
C. The center of gravity of an object may be thought of as the "balance point."
D. The center of mass of an object must lie within the object.
Answers
Answer:
The false statement is in option 'd': The center of mass of an object must lie within the object.
Explanation:
Center of mass is a theoretical point in a system of particles where the whole mass of the system is assumed to be concentrated.
Mathematically the position vector of center of mass is defined as
where,
is the position vector of the mass dm.
As we can see for homogenous symmetrical objects such as a sphere,cube,disc the center of mass is located at the centroid of the shapes itself but in many shapes it is located outside the body also.
Examples of shapes in which center of mass is located outside the body:
1) Horseshoe shaped body.
2) A thin ring.
In many cases we can make shapes of bodies whose center of mass lies outside the body.
Wien's law
Kepler's law
the spectral law
Answers
Answer:
The correct choice is
Wien's law
Explanation:
According to Wien's law, wavelength of maximum intensity of emission of black body radiation is inversely proportional to absolute temperature (T) of the black body. The formula for the law is given as
where
= wavelength of maximum intensity
T = temperature
b = Wien's constant