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Cerrena [4.2K]
3 years ago
7

What is eletro magnet

Physics
1 answer:
Leona [35]3 years ago
7 0
A soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
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Why is the picture above not an accurate representation of charges and their field lines?
pochemuha
Because field lines don’t all go in to the pole. The bottom half go outwards not inwards.
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Two electrons are passing 20.0 mm apart. What is the electric repulsive force that they exert on each other
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What is used as evidence for sea-floor spreading?
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3 years ago
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An irrigation canal has a rectangular cross section. At one point whare the canal is 16.0 m wide, and the water is 3.8 m deep, t
Irina-Kira [14]

Answer:

The depth of the water at this point is 0.938 m.

Explanation:

Given that,

At one point

Wide= 16.0 m

Deep = 3.8 m

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At a second point downstream

Width of canal = 16.5 m

Water flow = 11.0 cm/s

We need to calculate the depth

Using Bernoulli theorem

A_{1}V_{1}=A_{2}V_{2}

Put the value into the formula

16.0\times3.8\times2.8=16.5\times x\times 11.0

x=\dfrac{16.0\times3.8\times2.8}{16.5\times11.0}

x=0.938\ m

Hence,  The depth of the water at this point is 0.938 m.

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3 years ago
What was the kickball was originally named
Misha Larkins [42]

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