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DIA [1.3K]
4 years ago
9

if you put something like apiece of cardboard between a magnet and a iron nail, the magnet still holds the nail. how?

Physics
1 answer:
AlekseyPX4 years ago
8 0
Magnetic fields can go through some materials (like cardboard). Electric fields can also do that. Electromagnetic waves can do that. It’s not at all unusual because magnetic fields are not made up of particles so they can go through materials.
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Please help me will mark u brainiest
Vesnalui [34]

Answer:

C. 2.5 N

Explanation:

The sum of downwards moments equals sum of moments upwards

<u>Downwards moments </u>

Moments= Force*distance

               = [10/100 * 2 ] +[20/100*4]

               =[0.1*2] +[0.2*4]

               =[0.2+0.8]

               = 1.0 N

Equate this answer to upward force ;

1.0 N = 0.4 *U

1/0.4 =U

2.5 N =U

8 0
3 years ago
I need some help with my science homework about energy, work, and power. It would be greatly appreciated :)
fgiga [73]

Answer:

1. B

Explanation:

Work = Force × Distance

Work = 4N × 1.5M

5 0
4 years ago
True or false
Ahat [919]

Answer:

False

Explanation:

parts that are smaller than protons neutrons and electrons

5 0
3 years ago
Read 2 more answers
in a science class, the teacher sets the room up with a variety of objects such as tubs of water, aluminum foil, and clay.
olga_2 [115]

The theory drives this teacher's practices is Behaviorist.

<h3>Who is a Behaviorist?</h3>
  • A methodical approach to analyzing human and animal behavior is called behaviorism.
  • It is predicated on the idea that behavior is either a reflex brought on by the combination of specific antecedent stimuli in the environment or a result of the individual's history, particularly reinforcement and punishment contingencies, in conjunction with their current state of motivation and controlling stimuli.
  • Although most behaviorists acknowledge the significance of inheritance in affecting behavior, they place a greater emphasis on environmental factors.
  • As a response to depth psychology and other traditional forms of psychology, which frequently struggled to make predictions that could be tested experimentally but were derived from earlier research in the late nineteenth century, such as when Edward Thorndike invented the law of effect, behaviorism emerged in the early 1900s.

To know more about Behaviorist with the given link

brainly.com/question/2968739

#SPJ4

Question:

In a science class, the teacher sets the room up with a variety of objects such as tubs of water, aluminum foil, and clay. The question on the board is: What makes objects float? Students enter the class and, in small groups, explore the materials. make decisions regarding what data to collect. and discuss the data's meaning. Students are urged to think, ask questions, and draw conclusions on their own. What theory drives this teacher's practices? Select one

A. Behaviorist/Behavioral

B. Humanistic

C. Cognitive

D. Nativist/Innatist

4 0
2 years ago
Read 2 more answers
Is Salad dressing a compound ??
olasank [31]
Nonononononononononononononononononono
7 0
3 years ago
Read 2 more answers
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