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Margarita [4]
3 years ago
13

Ryan is experimenting with core materials for an electromagnet. He slides different core materials through a coil of current-car

rying wire. Sort the core materials based on whether they will or won’t increase the strength of Ryan’s electromagnet. A)wood,B)steel.C)silver. D)nickel. E)iron.F)glass
Physics
2 answers:
dsp733 years ago
7 0
Electromagnets<span> are basically coils of wire which behave like bar magnets with a distinct north and south pole when an electrical current passes through the coil. The better the conductivity of the material the bigger the strength of Ryan's electromagnet. 
The material are sorted as follows:
1. C) silver - the best conductor
2. E) iron
3. D) nickel
4. C) steel
5. F) glass - insulator
5. A) wood - insulator
Insulators do not conduct electricity.</span>
Marizza181 [45]3 years ago
5 0

Answer:

will increase strength: iron, nickel, steel

won't increase strength: wood, silver, glass

Explanation:

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A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed th
ValentinkaMS [17]
There are several information's already given in the question. Based on those given information's the answer can be easily deduced. 
First angle of depression = 18°33'
                                        = [18 + (33/60)] degree
                                        = 18.55 degrees
Second angle of depression = 51°33'
                                              = [51 + (33/60)] degrees
                                              = 51.55 degrees
Height of the lighthouse = 200 feet
Then
Distance traveled by the boat from when it
was first noticed until it stopped = (200/tan 18.55) - (200/tan 51.55)
                                                   = (200/0.3356) - (200/1.2594)
                                                   = 594.95 - 158.81
                                                   = 436.14 feet
I hope the procedure is clear enough for you to understand.
7 0
3 years ago
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A 50 kg boy on ice skates throws a 5 kg ball to the left. If the ball ends up going 20 m/s. How fast is the boy going?​
lukranit [14]

Answer:

He's going 4m/s per second

Explanation:

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6 0
3 years ago
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What happens to potential energy as the car goes up the hill?
True [87]
The potential energy will increase
8 0
3 years ago
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Which sport requires the least amount of agility? HELLLLPPP
ZanzabumX [31]

Answer:

golf

Explanation:

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5 0
3 years ago
A naked, male corpse was found at 8AM on Tuesday, July 9.The air temperature wasalready 26.7˚C (81˚F). The body exhibited some s
Slav-nsk [51]

Answer:

x = 9.87 hours ago.

Further explanation is present below.

Explanation:

Data given:

Air Temperature = 26.7°C (81°F)

Body temperature = 34.4°C (93.9°F)

We are given that, Livor mortis was absent. Secondly, The body exhibited some stiffness in the face and eyelids.

So, it can be concluded that, body must have died recently, as Livor mortis was absent plus the presence of stiffness in the face and eyelids. Furthermore,

The normal body temperature = 37°C

Body temperature in our case = 34.4° C

Difference = 37 -34.4 = 2.6°C

And Air temperature = 26.7°C

Which is a very low difference, in addition, it has not acquired the air temperature so, all this evidence certifies that body died recently.

Now, we have to calculate, how recently it died.

Formula:

0.78 . x = difference of body temperature and air temperature

Where, x = number of hours = time required,

0.78 . x = (34.4 - 26.7)

0.78 . x = 7.7

x = 7.7/0.78

x = 9.87 hours ago.

It means that, naked male corpse was died 9.87 hours ago.

Now, we are asked to find out clothing on the body had made a difference or not.

So, Yes it would definitely make a difference. As body would have more warmer than being naked. and it would result in a calculation of a different time of death. (body temperature would have > 34.4°C)

3 0
3 years ago
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