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Pie
3 years ago
8

A permanent magnet picks up an iron nail, magnetizing the nail. How is this system different from an electromagnet?

Physics
2 answers:
Marina86 [1]3 years ago
7 0

D

Its D i think because it doesnt refer to any other things

mote1985 [20]3 years ago
6 0

Answer:the nail is magnetized by a permanent magnet instead of by a solenoid with an electric current running through it

Explanation:

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What are some indicators of energy transformations?
Annette [7]

Explanation:

Contact, vision, sound, flavor, and smell are all markers of energy transformations. The most basic example would be when we notice something has begun to pass through vision. Whenever an entity accelerates or slows down, energy is constantly transformed.

5 0
3 years ago
Explain any two factors that affect the pressure at a point inside a liquid​
vredina [299]
The density of the body and the height or the depth of the body since the formula of liquid pressure is density x height gravity
4 0
2 years ago
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Four springs with the following spring constants, 113.0 N/m, 65.0 N/m, 102.0 N/m, and 101.0 N/m are connected in series. What is
Llana [10]

Answer:

K_e_q=22.75878093\frac{N}{m}

f=1.363684118Hz

Explanation:

In order to calculate the equivalent spring constant we need to use the next formula:

\frac{1}{K_e_q} =\frac{1}{K_1} +\frac{1}{K_2} +\frac{1}{K_3} +\frac{1}{K_4}

Replacing the data provided:

\frac{1}{K_e_q} =\frac{1}{113} +\frac{1}{65} +\frac{1}{102} +\frac{1}{101}

K_e_q=22.75878093\frac{N}{m}

Finally, to calculate the frequency of oscillation we use this:

f=\frac{1}{2(pi)} \sqrt{\frac{k}{m} }

Replacing m and k:

f=\frac{1}{2(pi)} \sqrt{\frac{22.75878093}{0.31} } =1.363684118Hz

4 0
3 years ago
Please help on this one!!
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the law of conversation of energy and describe the energy transformations that occur as you coast down a long hill on a bicycle and then apply the brakes to make the bike stop at the bottom.


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3 years ago
Which of the following is NOT true of fusion?
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C., used in power plants I think. 
6 0
3 years ago
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