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valina [46]
3 years ago
9

An electromagnet can be made by wrapping wire around which object?​

Physics
2 answers:
trasher [3.6K]3 years ago
8 0

Answer:

iron

Explanation:

Increasing the number of coils of wire wrapped around the nail increases the strength of the electromagnet, as measured by the number of paper clips the magnet can pick up

jarptica [38.1K]3 years ago
5 0

iron

Explanation:

Increasing the number of coils of wire wrapped around the nail increases the strength of the electromagnet, as measured by the number of paper clips the magnet can pick up

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A person applies a rightward force of 80 N to a cart of physics textbooks what is the reaction force
Goryan [66]

Just as Prof. Newton said: "For every action, there is an EQUAL, OPPOSITE reaction.". (See his motion law #3.)

If our person APPLIED a force of 80N pointing to the right, then that's the 'action'.  It must follow, as the night follows the day, that the strength of the equal REaction is also 80N, and it points to the left because it's opposite to the action.    

6 0
3 years ago
A square 1300-turn coil with the area of 0.2 m2 is situated in the xy-plane in a region where the magnetic field is (50k) μT. Wh
givi [52]

Answer:

e = 65 mA

Explanation:

given,

number of turn = 1300

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t = 0.2 s

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θ = 90°  to θ = 0°

maximum induced emf

e = -\dfrac{BAn(cos \theta_f - cos\theta_i)}{\Delta t}

e = -\dfrac{1300 \times 0.2 \times 50\times 10^{-6}(cos 90^0- cos0^0)}{0.2}

e =0.065

e = 65 mA

7 0
4 years ago
You tie a string to the ceiling and attach a weight to the end. You hold the weight next to your face but not touching it and th
Orlov [11]

Answer:

Depends on how long the string is, how heavy the weight, and how high you let go of it.

But it will most likely hit you :)

3 0
3 years ago
A 500 kg car possesses 20000 units of momentum . What would be the cars new momentum if it’s velocity was doubled .
PilotLPTM [1.2K]

the new momentum would be 40000 units as momentum = mass × velocity

3 0
3 years ago
I'll give brainliest if you give me a good awnser. :)
lbvjy [14]

Answer:

0.5

Explanation:

4 0
3 years ago
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