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scZoUnD [109]
3 years ago
11

What are the properties of magnets?

Physics
1 answer:
babymother [125]3 years ago
8 0

Answer:

Attractive Property – Magnet

Explanation:

attracts ferromagnetic materials like iron, cobalt, and nickel. Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other. Directive Property – A freely suspended magnet always points in a north-south direction.

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Darwin believed that emotional expressions began as ________ that came to have evolutionary value because they ________. Select
Strike441 [17]

Answer:

c. physiological reactions; convey emotional states to other members of the species

Explanation:

Darwin believed that emotional expressions began as physiological reactions that came to have evolutionary value because they convey emotional states to other members of the species. These reactions are used by many different types of species to convey various things.

5 0
3 years ago
If element x has 44 protons how many electrons does it have?
Jlenok [28]
The correct answer is '44'.

In fact, the atom of an element has an equal number of protons and electrons: therefore, if element X has 44 protons, it should have 44 electrons as well.

For curiosity: the chemical element with 44 protons and 33 electrons is Ruthenium.
5 0
3 years ago
in terms of loudness and pitch how would you compare the sounds made by a mosquito flying near your ear and the croaking of a bu
77julia77 [94]

The mosquito would have a higher pitch but quiet and the croaking bullfrog would be a lower pitch but loud.

6 0
3 years ago
A block of mass m is attached to a spring of constant k, which oscillates over a table without friction. Which of the following
Fofino [41]

Answer:

3. Kinetic energy of the system is maximum when potential energy is minimum.

Explanation:

Given that

Mass of block= m

Spring constant =K

Table is friction less.

As we know that in oscillatory motion ,when kinetic energy is maximum then potential energy will become minimum.

At the mean position:

Kinetic energy is maximum.

Potential energy is minimum.

At the extreme position:

Kinetic energy is minimum.

Potential energy is  maximum.

At the mean position velocity of block will be maximum that is why it have maximum kinetic energy and at the extreme position the velocity of block will be minimum that is why it have minimum kinetic energy.

So from above we can say that kinetic energy of the system is maximum when potential energy is minimum.

6 0
3 years ago
Bending the stick stretches the chemical bonds holding the stick's atoms together, which provides a source of elastic energy.
Tema [17]

Answer:

true

Explanation:

3 0
3 years ago
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