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zavuch27 [327]
2 years ago
6

What happens to the iron in the coilgun if the electricity in the coil was turned on

Physics
1 answer:
Andrews [41]2 years ago
7 0

  • <em><u>The piece of iron has become a magnet. Some substances can be magnetized by an electric current. When electricity runs through a coil of wire, it produces a magnetic field. The field around the coil will disappear, however, as soon as the electric current is turned off.</u></em>
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How could you group pennies,nickels, and dimes together
julsineya [31]

There isn't a direct answer to this, but I can show you!

This is how you group Pennies, Nickels, and Dimes.

1 Penny= 1 cent.

1 Nickel= 5 cents.

1 Dime= 10 cents.

Imagine if there was 5 pennies, 3 dimes, and 8 Nickels.

That might seem like a lot of numbers, but it's pretty simple!

You know how pennies are worth 1 cent? If we had 5 pennies, that would be 5 cents.

1+1+1+1+1=5 cents.

Then, we have 3 dimes. Dimes are each 10 cents.

So, 10x3 (If you know multiplication,  if not, you will learn it later) :)

10+10+10=  30 cents.

Now, nickels. We have 8 nickels! Remember, each nickel is 5 cents.

5+5+5+5+5+5+5+5=

40 Nickels.

Now add all of the coins up.

5 cents + 30 cents + 40 cents = 75 cents!

I hope this helped! If you need more help, you can ask me. :)

5 0
2 years ago
Which one of the following is not an organic compound? Why?<br>CH4<br>C2H6O<br>Ca0​
Alexus [3.1K]

Answer:

CaO

Explanation:

mark me brainliest

6 0
3 years ago
Read 2 more answers
How is electrolysis used in order to prevent materials from corrosion or rusting?​
KengaRu [80]

Answer:

We use electrolysis to prevent a material from rusting,

The metal forms a coating around the material and hence prevents any contact between the material and the environment

This process also gives us the physical strength of the material and the aesthetic properties of the coated metal

the metal commonly used to coat the object is Zinc and the process is called galvanisation

6 0
3 years ago
true or false Newtons's First Law states "Acceleration depends on the mass of the object and the unbalanced force applied"
babunello [35]
False, his first law states: An object that's in motion will remain in motion at a constant velocity unless it's acted on by an unbalanced force.

8 0
3 years ago
Read 2 more answers
Because the Earth rotates about its axis, a point on the equator experiences a centripetal acceleration of 0.033 7 m/s2, while a
xxTIMURxx [149]

Answers:

a) F_{g}=735 N and n=732.47 N, hence F_{g} > n

b) n_{poles}=735 N  n_{equator}=732.47 N

Explanation:

a) At the equator, both the <u>centripetal force</u> F_{c} and the <u>gravitational force</u> F_{g} (also called true weight) are directed "downward", while the <u>normal force</u> n_{equator} (also called apparent weight) is directed "upward". Therefore we have the following equation:

n_{equator}-F_{g}=-F_{c} (1)

Where:

F_{g}=m g being m=75 kg the mass and  g=9.8 m/s^{2} the acceleration due gravity

F_{c}=m a_{c} being a_{c}=0.0337 m/s^{2} the centripetal acceleration at the equator

According to this (1) is rewritten as:

n_{equator}-mg=-m a_{c} (2)

Isolating n_{equator}:

n_{equator}=-m a_{c} + mg (3)

n_{equator}=m(-a_{c}+g) (4)

n_{equator}=75 kg (-0.0337 m/s^{2}+9.8 m/s^{2}) (5)

n_{equator}=732.47 N (6) This is the apparent weight at the equator

The true weight is given by F_{g}=m g=75 kg (9.8 m/s^{2})

Hence:  F_{g}=735 N (7)

As we can see  F_{g} > n_{equator}

b) Now we have to calculate the apparent weight at the poles n_{poles}:

n_{poles}-F_{g}=-F_{c-poles} (8)

Since F_{c-poles}=0 (8) is rewritten as:

n_{poles}=F_{g} (9)

n_{poles}=m g (10)

n_{poles}=(75 kg)(9.8 m/s^{2})=735 N (11)

So, the apparent weight of the person at the poles is 735 N and at the equator is 732.47 N

5 0
3 years ago
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