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Katyanochek1 [597]
3 years ago
12

Which statements correctly describe the relationship between a solenoid and an electromagnet? Check all that apply.

Physics
2 answers:
prohojiy [21]3 years ago
8 0

Answer:

B. A solenoid carries an electric current.

C. An electromagnet is a solenoid with a metal core.

E. A solenoid induces a magnetic field in a metal core.

Explanation:

An electroiman is a large number of wire turns (solenoid) that are wrapped around a magnetic core made of a ferromagnetic or ferrimagnetic material, such as iron. The metal core is composed of "tiny imans", when a current is passed through the solenoid, its magnetic field penetrates the iron, and causes the "tiny imans" to aligning parallel to the magnetic field, creating a large magnetic field.

valkas [14]3 years ago
7 0

Answer:

B, C, E on edgeenuity

Explanation:

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Which of the following is an example of work?
EastWind [94]

Answer:

it's D

Explanation:

6 0
3 years ago
A student needs to conduct a reaction that combines chemicals A and B to synthesize product AB . If we write this as a chemical
rusak2 [61]

Answer : The number of molecules of A needed to make 5000 molecules of AB will be, 5000

Explanation :

Law of conservation of mass : It states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

The given balanced chemical reaction is,

A+B\rightarrow AB

As per question, molecule B is an excess reagent because it had enough molecule to make 5000 molecules of AB. So, molecule A is limiting reagent.

From the balanced reaction, we conclude that

As, 1 molecule of AB produced from 1 molecule of A

So, 5000 molecule of AB produced from 5000 molecule of A

Hence, the number of molecules of A needed to make 5000 molecules of AB will be, 5000

8 0
4 years ago
Why is moon is non-lomis back​
qwelly [4]

Explanation:

At night, when that part of Earth is facing away from the sun, space looks black because there 8s no nearby bright source of light like the sun , to be scattered

4 0
4 years ago
If a honeybee is flying 7.0 m/s, what is the kinetic energy (Joules) if its mass is 0.1 g?
svetlana [45]

Answer:

KINETIC ENERGY=K.E=0.00245 Joules ≈ 0.003 Joules

Explanation:

mass=m=0.1g=0.0001kg

velocity=v=7.0m/s

kinetic energy=K.E.=?

as we know that

kinetic energy=\frac{1}{2}mv^2\\ putting values\\kinetic energy=\frac{1}{2}(0.0001kg)(7.0m/s)^2\\ kinetic energy=\frac{1}{2} 0.0049joules\\kinetic energy= 0.00245Newton meter or joules

hope it will help ^_^

5 0
3 years ago
at what position an object be placed in front of a concave mirror of radius of curvature 40cm so that an erect image of magnific
Thepotemich [5.8K]
  • C=40cm
  • f=C/2=40/2=20

  • m=3

\\ \sf\longmapsto m=\dfrac{f}{f-u}

\\ \sf\longmapsto 3=\dfrac{20}{20-u}

\\ \sf\longmapsto 3(20-u)=20

\\ \sf\longmapsto 60-3u=20

\\ \sf\longmapsto 3u=40

\\ \sf\longmapsto u=13.3cm

  • m=magnification
  • f is focal length
  • C is radius of curvature
  • u is object distance
8 0
3 years ago
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