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Viktor [21]
3 years ago
6

Your friend wants to make an electromagnet strong enough to lift a heavy metal object. What are some suggestions you would give

him on how to make the electromagnet strong enough?
Physics
1 answer:
Korolek [52]3 years ago
4 0

Answer:

If you want, you can make an electromagnet by wrapping wires around a used paper towel roll, but if you want a strong magnet, wrap them around an iron core instead.

Explanation:

sorry if i'm wrong and this does not help please rate this so i can get feedback

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Your mass will never change despite if you go to Jupiter, Uranus, Mars, Earth, or any planet.
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Read 2 more answers
A square wave has amplitude 0 V for the low voltage and 4 V for the high voltage. Calculate the average voltage by integrating o
Margarita [4]

Answer:

V_{average} = \frac{1}{2}  V_o  ,     V_{average} = 2 V

Explanation:

he average or effective voltage of a wave is the value of the wave in a period

            V_average = ∫ V dt

in this case the given volage is a square wave that can be described by the function

           V (t) = \left \{ {{V=V_o \ \ \  t<  \tau /2} \atop {V=0 \ \  \ \  t> \tau /2 }   } \right.

to substitute in the equation let us separate the into two pairs

             V_average = \int\limits^{1/2}_0 {V_o} \, dt + \int\limits^1_{1/2} {0} \, dt

             V_average = V_o \ \int\limits^{1/2}_0 {} \, dt

             V_{average} = \frac{1}{2}  V_o

we evaluate  V₀ = 4 V

             V_{average} = 4 / 2)

             V_{average} = 2 V

6 0
3 years ago
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Answer:

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Explanation:

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Choice 'b' is one possible way to state
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